Go Math Answer Key for Grade 1 aids teachers to differentiate instruction, building, and reinforcing foundational mathematics skills that alter from the classroom to real life. With the help of Go Math primary school Grade 1 Answer Key, you can think deeply regarding what you are learning, and you will really learn math easily just like that.

## Go Math Grade 1 Chapter 2 Answer Key Subtraction Concepts

To achieve high scores in Grade 1, students need to solve all questions and exercises included in Go Math book considers both the content and problems. Students of Grade 1 can get a strong foundation on mathematics concepts by referring to the Go Math course Book. It was highly professional mathematics educators and the solutions prepared by them are in a concise manner for easy grasping.

**Curious George**

Look at the picture. Make up a subtraction story problem.

Answer:

The number of dogs = 2.

Explanation:

In the above-given question,

given that,

there are 3 dogs.

out of 3 dogs, 1 take away.

3 – 1 = 2.

The number of dogs = 2.

### Subtraction Concepts Show What You Know

**Explore Numbers 1 to 4**

Show the number with .

Draw the .

Question 1.

Answer:

The number is 4.

Explanation:

In the above-given question,

given that,

the number is 4.

so we have to draw the 4 buttons.

Question 2.

Answer:

The number is 2.

Explanation:

In the above-given question,

given that,

the number is 2.

so we have to draw the 2 buttons.

**Numbers 1 to 10**

How many objects are in each set?

Question 3.

_10_ butterflies

Answer:

There are 10 butterflies.

Explanation:

In the above-given question,

given that,

there are 10 butterflies.

so the number of butterflies = 10.

Question 4.

_1_ cat

Answer:

There is 1 cat.

Explanation:

In the above-given question,

given that,

there is 1 cat.

so the number of cats = 1.

Question 5.

_8_ leaves

Answer:

There are 8 leaves.

Explanation:

In the above-given question,

given that,

there are 8 leaves.

so the number of leaves = 8.

**Use Pictures to Subtract**

How many are left?

Question 6.

5 – 4 = _1_

Answer:

The number of apples = 1.

Explanation:

In the above-given question,

given that,

there are 5 apples.

5 – 4 = 1 apple.

Question 7.

4 – 2 = _2_

Answer:

The number of fishes = 2.

Explanation:

In the above-given question,

given that,

there are 4 fishes.

4 – 2 = 2 fishes.

### Subtraction Concepts Vocabulary Builder

**Visualize It**

Sort the review words from the box.

**Understand Vocabulary**

Circle the part you take from the group. Then cross it out

Question 1.

Answer:

The number of oranges = 3.

Explanation:

In the above-given question,

given that,

There are 5 oranges.

2 oranges are eaten.

5 – 2 = 3 oranges.

The number of oranges = 3.

Question 2.

Answer:

The number of balloons = 1.

Explanation:

In the above-given question,

given that,

there are 4 ballons.

out of 4 ballons, 3 fly away.

4 – 3 = 1.

The number of ballons = 1

Question 3.

Answer:

The number of toy cars = 2.

Explanation:

In the above-given question,

given that,

there are 3 toy cars.

out of 3 toy cars, 1 rolls away.

3 – 1 = 2.

The number of toy cars = 2.

### Subtraction Concepts Game: Subtraction Slide

**Subtraction Slide**

**Materials**

Play with a partner.

Take turns.

1. Toss the

2. Take away that number from . Use to find what is left.

3. If you see the answer on your slide, cover it with a .

4. If the answer is not on your slide, your turn is over.

5. The first player to cover a whole slide wins.

### Subtraction Concepts Vocabulary Game

**Bingo**

**Materials**

• 1 set of word cards

• 18

**How to Play**

Play with a partner.

1. Mix the cards. Put the cards in a pile with the blank side up.

2. Take a card. Read the word.

3. Find the matching word on your Bingo board. Cover the word with a . Put the card at the bottom of the pile.

4. The other player takes a turn.

5. The first player to cover 3 spaces in a line wins. The line may go across or down.

**The Write Way**

**Reflect**

Choose one idea. Draw and write about it.

• Think about what you did during math today. Complete one of the sentences:

I learned _____.

I want to learn more about _____.

• Read the problem:

Sophie has 5 stickers.

She gives 2 to Olivia.

Sophie has 2 stickers left.

Is the answer correct? Draw and write to explain. Use another piece of paper for your drawing.

### Lesson 2.1 Use Pictures to Show Taking From

**Essential Question**

How can you show taking from with pictures?

__ children now

**Math Talk**

**MATHEMATICAL PRACTICES**

Model How did you find how many are in the sandbox now?

**Share and Shhow MATH BOARD**

Circle the part you are taking from the group. Then cross it out. Write how many there are now.

Question 1.

6 bugs 2 bugs fly away. _4_ bugs now

Answer:

The number of bugs= 4.

Explanation:

In the above-given question,

given that,

there are 6 bugs.

out of 6 bugs, 2 fly away.

6 – 2 = 4.

The number of bugs = 4.

Question 2.

3 dogs 1 dog walks away. _1_ dogs now

Answer:

The number of dogs= 2.

Explanation:

In the above-given question,

given that,

there are 3 dogs.

out of 3 dogs, 1 walks away.

3 – 1 = 2.

The number of dogs = 2.

**On Your Own**

Circle the part you are taking from the group. Then cross it out. Write how many there are now.

Question 3.

7 chicks 2 chicks walk away. __ chicks now

Answer:

The number of chicks = 7.

Explanation:

In the above-given question,

given that,

there are 7 chicks.

out of 7 chicks, 2 walk away.

7 – 2 = 5.

The number of dogs = 2.

Question 4.

6 ducks 3 ducks walk away. __ ducks now

Answer:

The number of ducks = 3.

Explanation:

In the above-given question,

given that,

there are 6 ducks.

out of 6 ducks 3 walk away.

6 – 3 = 3.

The number of ducks = 3.

Question 5.

**THINK SMARTER**

Ellie and Sara see 8 birds in the tree. Ellie sees 2 fewer birds than Sara. Sara sees 5 birds. How many birds does Ellie see?

_3_ birds

Answer:

Ellie sees 3 birds.

Explanation:

In the above-given question,

given that,

Ellie and Sara see 8 birds in the tree.

Sara sees 5 birds.

Ellie sees 2 fewer birds than Sara.

5 – 2 = 3.

Ellie sees 3 birds.

Question 6.

**GO DEEPER**

Choose numbers to complete the story. Write the numbers. Draw to show the problem.

__5_ worms _2_ worms wiggle away. 3 worms now

Answer:

The number of worms = 3.

Explanation:

In the above-given question,

given that,

there are 5 worms.

out of 5 worms 2 wiggle away.

5 – 2 = 3.

The number of worms = 3.

**Problem Solving • Applications**

**MATHEMATICAL PRACTICE**

**Use Diagrams** Solve.

Question 7.

There are 6 cats. 1 cat runs away. How many cats are there now? Draw to show your work.

__ cats

Answer:

The number of cats = 5.

Explanation:

In the above-given question,

given that,

there are 6 cats.

out of 6 cats 1 cat runs away.

6 – 1 = 5.

The number of cats = 5.

Question 8.

**GO DEEPER**

There are 6 dogs. 3 dogs run away. Then 1 more dog runs away. How many dogs are there now?

_2_ dogs now

Answer:

The number of dogs= 2.

Explanation:

In the above-given question,

given that,

there are 6 dogs.

out of 6 dogs, 4 runs away.

3 + 1 = 4

6 – 4 = 2.

The number of dogs = 2.

Question 9.

**THINK SMARTER**

Use the picture. Write the numbers.

8 birds _5_ birds fly away. _3_ birds now

Answer:

The number of birds= 8.

Explanation:

In the above-given question,

given that,

there are 8 birds.

out of 8 birds, 5 fly away.

8 – 5 = 3.

The number of birds = 8.

Question 10.

**THINK SMARTER**

Circle and cross out the part that goes away. Write how many there are now.

10 fish 6 fish swim away. _4_ fish now

Answer:

The number of fish= 4.

Explanation:

In the above-given question,

given that,

there are 10 fish.

out of 10 fish, 6 swim away.

10 – 6 = 6.

The number of fish = 4.

**TAKE HOME ACTIVITY**

• Have your child draw and solve the subtraction problem: There are 6 cows. 3 cows walk away. How many cows are there now?

Answer:

The number of cows = 3.

Explanation:

In the above-given question,

given that,

there are 6 cows.

out of 6 cows, 3 walk away.

6 – 3 = 3.

The number of cows = 3.

### Use Pictures to Show Taking From Homework & Practice 2.1

Use the picture. Circle the part you take from the whole group. Then cross it out. Write how many there are now.

Question 1.

3 cats 1 cat walks away. _2_ cats now

Answer:

The number of cats = 2.

Explanation:

In the above-given question,

given that,

there are 3 cats.

out of 3 cats 1 cat runs away.

3 – 1 = 2.

The number of cats = 2.

Question 2.

5 horses 2 horses walk away. _3_ horses now

Answer:

The number of horses = 3.

Explanation:

In the above-given question,

given that,

there are 5 horses.

out of 5 horses, 2 horses walk away.

5 – 2 = 3.

The number of horses = 3

.

**Problem Solving**

Solve.

Question 3.

There are 7 birds. 2 birds fly away. How many birds are there now?

_5_ birds

Answer:

The number of birds= 5.

Explanation:

In the above-given question,

given that,

there are 7 birds.

out of 7 birds, 2 fly away.

7 – 2 = 5.

The number of birds = 5.

Question 4.

**WRITE Math**

Draw a picture to show the problem. There are 9 turtles. 3 turtles walk away. How many turtles are there now?

Answer:

The number of turtles= 6.

Explanation:

In the above-given question,

given that,

there are 9 turtles.

out of 9 turtles, 3 walk away.

9 – 3 = 6.

The number of turtles = 6.

**Lesson Check**

Question 1.

There are 4 ducks. 2 ducks swim away. How many ducks are there now?

_2_ ducks

Answer:

The number of ducks = 2.

Explanation:

In the above-given question,

given that,

there are 4 ducks.

out of 4 ducks 2 walk away.

4 – 2 = 2.

The number of ducks = 2.

**Spiral Review**

Question 2.

What is the sum for 2 + 0?

Draw to show each addend. Write the sum.

2 + 0 = _2_

Answer:

The sum for 2 + 0 = 2.

6 + 2 = 8.

Explanation:

In the above-given question,

given that,

The number 2 + 0 = 2.

The sum for 2 + 0 = 2.

6 + 2 = 8.

Question 3.

How many birds? Write how many.

5 birds and 2 birds _7_ birds.

Answer:

The number of birds = 7.

Explanation:

In the above-given question,

given that,

There are 5 birds and 2 birds = 7 birds.

5 + 2 = 7.

The number of birds = 7.

Question 4.

What is the sum? Write the sum.

Answer:

The sum for 6 + 2 = 8.

Explanation:

In the above-given question,

given that,

the sum of numbers 6 and 2.

6 + 2 = 8.

the sum for 6 + 2 = 8.

Lesson 2.2 Model Taking From

**Essential Question**

How do you model taking from a group?

**Listen and Draw**

Use to show taking from. Draw to show your work.

**Math Talk**

**MATHEMATICAL PRACTICES**

Reasoning Are there more than or fewer than 9 butterflies now?

**Share and Show MATH BOARD**

Use to show taking from. Draw the . Circle the part you take away from the group. Then cross it out. Write the difference.

Question 1.

8 dogs 3 dogs run away.

8 – 3 = _5_

Answer:

The number of dogs = 5.

Explanation:

In the above-given question,

given that,

there are 8 dogs.

out of 8 dogs, 3 runs away.

8 – 3 = 5.

The number of dogs = 5.

Question 2.

6 frogs 4 frogs hop away.

6 – 4 = _2_

Answer:

The number of frogs = 2.

Explanation:

In the above-given question,

given that,

there are 6 frogs.

out of 6 frogs 4 hop away.

6 – 4 = 2.

The number of frogs = 2.

**On Your Own**

Use to show taking from. Draw the . Circle the part you take away from the group. Then cross it out. Write the difference.

Question 3.

5 seals 4 seals swim away.

5 – 4 = _1_

Answer:

The number of seals = 1.

Explanation:

In the above-given question,

given that,

there are 5 seals.

out of 5 seals 4 swim away.

5 – 4 = 1.

The number of seals = 1.

Question 4.

9 bears 6 bears run away.

9 – 6 = _3_

Answer:

The number of bears = 3.

Explanation:

In the above-given question,

given that,

there are 9 bears.

out of 9 bears 6 run away.

9 – 6 = 3.

The number of bears = 3.

Question 5.

**THINK SMARTER**

Kelly sees some fish at the pet shop. A man buys 2 fish. A boy buys 4 fish. Now there are 3 fish. How many fish did Kelly see at first?

_9_ fish

Answer:

Kelly sees 9 fish at first.

Explanation:

In the above-given explanation,

given that,

A man buys 2 fish.

A boy buys 4 fish.

Now there are 3 fish.

3 + 4 + 2 = 9.

Kelly sees 9 fish at first.

Question 6.

**GO DEEPER**

Use the picture. Circle a part to take from the group. Then cross it out. Write the subtraction sentence.

Answer:

The number of cubes = 6.

Explanation:

In the above-given question,

given that,

there are 9 cubes.

out of 9 cubes 3 take away.

9 – 3 = 6.

The number of cubes = 6.

**Problem Solving • Applications**

**MATHEMATICAL PRACTICE**

**Make Sense of Problems**

Draw to solve. Complete the subtraction sentence.

Question 7.

There are 5 boys. 3 boys go home. How many are there now?

_5_ – _3_ = __2_

_2_ boys

Answer:

The number of boys = 2.

Explanation:

In the above-given question,

given that,

there are 5 boys.

out of 5 boys 3 boys go home.

5 – 3 = 2.

The number of boys = 2.

Question 8.

There are 8 bunnies. 2 bunnies hop away. How many bunnies are there now?

_8_ – _2_ = _6_

_6_ bunnies

Answer:

The number of bunnies = 6.

Explanation:

In the above-given question,

given that,

there are 8 bunnies.

out of 8 bunnies 2 bunnies hop away.

8 – 2 = 6.

The number of bunnies = 6.

Question 9.

**THINK SMARTER**

Draw a picture to show a subtraction sentence. Write the subtraction sentence.

_3_ – _1_ = _2_

Answer:

The number of cats = 2.

Explanation:

In the above-given question,

given that,

there are 3 cats.

out of 3 cats 1 cat runs away.

3 – 1 = 2.The number of cats = 2.

Question 10.

**THINK SMARTER**

Take away to show the problem. Write the difference. There are 7 mice. 5 run away.

7 – 5 = _2_

Answer:

The number of mice = 2.

Explanation:

In the above-given question,

given that,

there are 7 mice.

out of 7 mice 5 runs away.

7 – 5 = 2.

The number of mice = 2.

**TAKE HOME ACTIVITY**

• Use small objects of the same kind to model a subtraction situation for numbers within 10. Ask your child to write the subtraction sentence for it. Then switch roles and repeat the activity.

### Model Taking From Homework & Practice 2.2

Use to show taking from. Draw the . Circle the part you take from the group. Then cross it out. Write the difference.

Question 1.

4 turtles 1 turtle walks away.

4 – 1 = _3_

Answer:

The number of turtles = 3.

Explanation:

In the above-given question,

given that,

there are 4 turtles.

out of 4 turtles, 1 walks away.

4 – 1 = 3.

The number of turtles = 3.

Question 2.

8 birds 7 birds fly away.

8 – 7 = _1_

Answer:

The number of birds = 1.

Explanation:

In the above-given question,

given that,

There are 8 birds, 7 birds fly away.

8 – 7 = 1.

The number of birds = 1.

**Problem Solving**

Draw to solve. Complete the subtraction sentence.

Question 3.

There are 8 fish. 4 fish swim away. How many fish are there now?

_8_ – _4_ = _4_

_4_ fish

Answer:

The number of fish = 4.

Explanation:

In the above-given question,

given that,

there are 8 fish.

out of 8 fish, 4 fish swim away.

8 – 4 = 4.

The number of fish = 4.

Question 4.

**WRITE Math**

Use pictures and numbers to model 9 − 2.

Answer:

The number of fish = 7.

Explanation:

In the above-given question,

given that,

there are 9 fish.

out of 9 fish, 2 fish swim away.

9 – 2 = 7.

The number of fish = 7.

**Lesson Check**

Question 1.

Show taking from. Circle the part you take from the group. Then cross it out. Write the difference.

5 – 2 = _3_

Answer:

The number of cubes = 3.

Explanation:

In the above-given question,

given that,

there are 5 cubes.

out of 5 cubes, 2 take away.

5 – 2 = 3.

The number of cubes = 3.

**Spiral Review**

Question 2.

How many snails? Write the number.

7 snails and 1 snail _6_ snails

Answer:

The number of snails = 6.

Explanation:

In the above-given question,

given that,

there are 7 snails.

out of 7 snails 1 runs away.

7 – 1 = 6.

The number of snails = 6.

Question 3.

Circle the number sentences that show the same addends in a different order.

Answer:

The number sentences that show the same addends = 6 + 2 = 8 and 2 + 6 = 8.

Explanation:

In the above-given question,

given that,

The number sentences are

7 + 1 = 8, 6 + 2 = 8 and 2 + 6 = 8.

The number sentences that show the same addends = 6 + 2 = 8 and 2 + 6 = 8.

### Lesson 2.2 Model Taking From

**Essential Question**

How do you model taking from a group?

**Listen and Draw**

Use to show taking from. Draw to show your work.

**Math Talk**

**MATHEMATICAL PRACTICES**

Reasoning Are there more than or fewer than 9 butterflies now?

**Share and Show MATH BOARD**

Use to show taking from. Draw the . Circle the part you take away from the group. Then cross it out. Write the difference.

Question 1.

8 dogs 3 dogs run away.

8 – 3 = _5_

Answer:

The number of dogs = 5.

Explanation:

In the above-given question,

given that,

there are 8 dogs.

out of 8 dogs, 3 runs away.

8 – 3 = 5.

The number of dogs = 5.

Question 2.

6 frogs 4 frogs hop away.

6 − 4 = _2_

Answer:

The number of frogs = 2.

Explanation:

In the above-given question,

given that,

there are 4 frogs.

out of 6 frogs, 4 hop away.

6 – 4 = 2.

The number of frogs = 2.

**On Your Own**

Question 3.

5 seals 4 seals swim away.

5 – 4 = _1_

Answer:

The number of seals = 1.

Explanation:

In the above-given question,

given that,

there are 5 seals.

out of 5 seals, 4 swim away.

5 – 4 = 1.

The number of seals = 1.

Question 4.

9 bears 6 bears run away.

9 – 6 = __

Answer:

The number of bears = 3.

Explanation:

In the above-given question,

given that,

there are 9 bears.

out of 9 bears, 6 runs away.

9 – 6 = 3.

The number of bears = 3.

Question 5.

**THINK SMARTER**

Kelly sees some fish at the pet shop. A man buys 2 fish. A boy buys 4 fish. Now there are 3 fish. How many fish did Kelly see at first?

_9_ fish

Answer:

Kelly sees 9 fish at first.

Explanation:

In the above-given explanation,

given that,

A man buys 2 fish.

A boy buys 4 fish.

Now there are 3 fish.

3 + 4 + 2 = 9.

Kelly sees 9 fish at first.

Question 6.

**GO DEEPER**

Use the picture. Circle a part to take from the group. Then cross it out. Write the subtraction sentence.

Answer:

The number of cubes = 5.

Explanation:

In the above-given question,

given that,

there are 9 cubes.

out of 9 cubes, 4 take away.

9 – 4 = 5.

The number of cubes = 5.

**Problem Solving • Applications WRITE Math**

**MATHEMATICAL PRACTICE**

**Make Sense of Problems**

Draw to solve. Complete the subtraction sentence.

Question 7.

There are 5 boys. 3 boys go home. How many are there now?

_5_ – _3_ = _2_

__ boys

Answer:

The number of boys = 2.

Explanation:

In the above-given question,

given that,

there are 5 boys.

out of 5 boys 3 boys go home.

5 – 3 = 2.

The number of boys = 2.

Question 8.

There are 8 bunnies. 2 bunnies hop away. How many bunnies are there now?

__ – __ = __

__ bunnies

Answer:

The number of bunnies = 6.

Explanation:

In the above-given question,

given that,

there are 8 bunnies.

out of 8 bunnies 2 bunnies hop away.

8 – 2 = 6.

The number of bunnies = 6.

Question 9.

**THINK SMARTER**

Draw a picture to show a subtraction sentence. Write the subtraction sentence.

__ – __ = __

Answer:

The number of cats = 2.

Explanation:

In the above-given question,

given that,

there are 3 cats.

out of 3 cats 1 cat runs away.

3 – 1 = 2.

The number of cats = 2.

Question 10.

**THINK SMARTER**

Take away to show the problem. Write the difference. There are 7 mice. 5 run away.

7 – 5 = _2_

Answer:

The number of mice = 2.

Explanation:

In the above-given question,

given that,

there are 7 mice.

out of 7 mice 5 runs away.

7 – 5 = 2.

The number of mice = 2.

**TAKE HOME ACTIVITY**

• Use small objects of the same kind to model a subtraction situation for numbers within 10. Ask your child to write the subtraction sentence for it. Then switch roles and repeat the activity.

### Model Taking From Homework & practice 2.2

Use to show taking from. Draw the . Circle the part you take from the group. Then cross it out. Write the difference.

Question 1.

4 turtles 1 turtle walks away.

4 – 1 = __

Answer:

The number of turtles = 3.

Explanation:

In the above-given question,

given that,

there are 4 turtles.

out of 4 turtles, 1 walks away.

4 – 1 = 3.

The number of turtles = 3.

Question 2.

8 birds 7 birds fly away.

8 – 7 = _1_

Answer:

The number of birds = 1.

Explanation:

In the above-given question,

given that,

There are 8 birds, 7 birds fly away.

8 – 7 = 1.

The number of birds = 1.

**Problem Solving**

Draw to solve. Complete the subtraction sentence.

Question 3.

There are 8 fish. 4 fish swim away. How many fish are there now?

_8_ – _4_ = _4__

_4_ fish

Answer:

The number of fish = 4.

Explanation:

In the above-given question,

given that,

there are 8 fish.

out of 8 fish, 4 fish swim away.

8 – 4 = 4.

The number of fish = 4.

Question 4.

**WRITE Math**

Use pictures and numbers to model 9 − 2.

Answer:

The number of fish = 7.

Explanation:

In the above-given question,

given that,

there are 9 fish.

out of 9 fish, 2 fish swim away.

9 – 2 = 7.

The number of fish = 7.

**Lesson Check**

Question 1.

Show taking from. Circle the part you take from the group. Then cross it out. Write the difference.

5 – 2 = _3_

Answer:

The number of cubes = 3.

Explanation:

In the above-given question,

given that,

there are 5 cubes.

out of 5 cubes, 2 take away.

5 – 2 = 3.

The number of cubes = 3.

**Spiral Review**

Question 2.

How many snails? Write the number.

7 snails and 1 snail _6_ snails

Answer:

The number of snails = 6.

Explanation:

In the above-given question,

given that,

there are 7 snails.

out of 7 snails 1 runs away.

7 – 1 = 6.

The number of snails = 6.

Question 3.

Circle the number sentences that show the same addends in a different order.

Answer:

The number sentences that show the same addends = 6 + 2 = 8 and 2 + 6 = 8.

Explanation:

In the above-given question,

given that,

The number sentences are

7 + 1 = 8, 6 + 2 = 8 and 2 + 6 = 8.

The number sentences that show the same addends = 6 + 2 = 8 and 2 + 6 = 8.

### Lesson 2.3 Model Taking Apart

**Essential Question**

How do you model taking apart?

**Listen and Draw**

Use to model the problem. Draw and color to show your model. Write the numbers and a subtraction sentence.

_5_ red apples _2_ yellow apples

Jeff has _2_ yellow apples.

Answer:

Jeff has 2 yellow apples.

Explanation:

In the above-given question,

given that

There are 5 red apples.

3 yellow apples.

5 – 3 = 2.

Jeff has 2 yellow apples.

**Math Talk**

**MATHEMATICAL PRACTICES**

Use Tools How does using the counters help you write the subtraction sentence?

**Model and Draw**

Subtract to find how many small cups there are.

Maria has 6 cups. 2 cups are big. The rest are small. How many cups are small?

_ small cups

Answer:

The number of small cups = 4.

Explanation:

In the above-given question,

given that,

Maria ha 6 cups.

2 cups are big.

the rest are small.

6 – 2 = 4.

The number of small cups = 4.

**Share and Show MATH BOARD**

Use to solve. Draw to show your work. Write the number sentence and how many.

Question 1.

There are 7 folders. 6 folders are red. The rest are yellow. How many folders are yellow?

_1_ yellow folder

Answer:

The number of yellow folders = 1.

Explanation:

In the above-given question,

given that,

There are 7 folders.

6 folders are red.

the rest are yellow.

7 – 6 = 1.

The number of yellow folders = 1.

Question 2.

There are 8 pencils. 3 pencils are short. The rest are long. How many pencils are long?

_5_ long pencils

Answer:

The number of long pencils = 5.

Explanation:

In the above-given question,

given that,

There are 8 pencils.

3 pencils are short.

the rest are long.

8 – 5 = 3.

The number of long pencils = 5.

**On Your Own**

**MATHEMATICAL PRACTICE**

**Write an Equation**

Use to solve. Draw to show your work. Write the number sentence and how many.

Question 3.

There are 9 fish. 5 fish are red. The rest are yellow. How many fish are yellow?

_4_ yellow fish

Answer:

The number of yellow fish = 4.

Explanation:

In the above-given question,

given that,

There are 9 fish.

5 fish are red.

the rest are yellow.

9 – 5 = 4.

The number of yellow fish = 4.

Question 4.

There are 7 ants. 4 ants are big. The rest are small. How many ants are small?

_3_ small ants

Answer:

The number of small ants = 3.

Explanation:

In the above-given question,

given that,

There are 7 ants.

4 ants are big.

the rest are small.

7 – 4 = 3.

The number of small ants = 3.

Question 5.

There are 5 trees. 1 tree is short. The rest are tall. How many trees are tall?

_4_ tall trees

Answer:

The number of tall trees = 4.

Explanation:

In the above-given question,

given that,

There are 5 trees.

1 tree is short.

the rest are tall.

5 – 1 = 4.

The number of tall trees = 4.

Question 6.

**GO DEEPER**

There are 8 birds. 1 bird flies away. Then 2 more birds fly away. How many birds are there now?

_5_ birds

Answer:

The number of birds= 5.

Explanation:

In the above-given question,

given that,

there are 8 birds.

out of 8 birds, 3 fly away.

8 – 3 = 5.

The number of birds = 5.

**Problem Solving • Applications**

Solve. Draw a model to explain.

Question 7.

There are 6 bears. 4 are big. The rest are small. How many bears are small?

_2_ small bears

Answer:

The number of small bears = 2.

Explanation:

In the above-given question,

given that,

There are 6 bears.

4 bears are big.

the rest are small.

6 – 4 = 2.

The number of small bears = 2.

Question 8.

**THINK SMARTER**

There are 7 bears. 1 bear walks away. Then 4 more bears walk away. How many bears are there now?

_2_ bears

Answer:

The number of bears= 2.

Explanation:

In the above-given question,

given that,

there are 7 bears.

out of 7 bears, 5 walk away.

7 – 5 = 2.

The number of bears = 2.

Question 9.

**GO DEEPER**

There are 4 bears. Some are black and some are brown. There are fewer than 2 black bears. How many bears are brown?

__ brown bears

Answer:

The number of brown bears = 2.

Explanation:

In the above-given question,

given that,

There are 4 bears.

2 bears are black.

the rest are brown.

4 – 2 = 2.

The number of brown bears = 2.

Question 10.

**THINK SMARTER**

Draw to solve. Write the number sentence. There are 8 flowers. 4 flowers are red. The rest are yellow. How many flowers are yellow?

Answer:

The number of yellow flowers = 4.

Explanation:

In the above-given question,

given that,

There are 8 flowers.

4 flowers are red.

the rest are yellow.

8 – 4 = 4.

The number of yellow flowers = 4.

**TAKE HOME ACTIVITY**

• Have your child collect a group of up to 10 small objects of the same kind and use them to make up subtraction stories.

### Model Taking Apart Homework & Practice 2.3

Use to solve. Draw to show your work. Write the number sentence and how many.

Question 1.

There are 7 bags. 2 bags are big. The rest are small. How many bags are small?

__5 small bags

Answer:

The number of small bags = 5.

Explanation:

In the above-given question,

given that,

There are 7 bags.

2 bags are big.

the rest are small.

7 – 2 = 5.

The number of small bags = 5.

**Problem Solving**

Solve. Draw a model to explain.

Question 2.

There are 8 cats. 6 cats are white. The rest are black. How many cats are black?

_2_ black cats

Answer:

The number of black cats = 2.

Explanation:

In the above-given question,

given that,

There are 8 cats.

6 cats are white.

the rest are black.

8 – 6 = 2.

The number of black cats = 2.

Question 3.

**WRITE Math**

Use pictures and numbers to model 8 – 3.

Answer:

The number of fish = 5.

Explanation:

In the above-given question,

given that,

there are 8 fish.

out of 8 fish, 3 fish swim away.

8 – 3 = 5.

The number of fish = 5.

**Lesson Check**

Question 1.

Solve. Draw a model to explain. There are 8 blocks. 3 blocks are white. The rest are blue. How many blocks are blue?

_5_ blue blocks

Answer:

The number of blue blocks = 5.

Explanation:

In the above-given question,

given that,

There are 8 block.

3 blocks are white.

the rest are blue.

8 – 3 = 5.

The number of blue blocks = 5.

**Spiral Review**

Question 2.

Draw to solve. Write the number sentence and how many. There are 4 green grapes and 5 red grapes. How many grapes are there?

_9_ grapes

Answer:

The number of grapes = 9.

Explanation:

In the above-given question,

given that,

There are 9 grapes.

4 grapes are green.

the rest are red grapes.

5 + 4 = 9

The number of grapes = 9.

Question 3.

Solve. Complete the model and the number sentence. 3 ducks swim in the pond. 2 more join them. How many ducks are in the pond now?

3 + 2 = _5_ ducks

Answer:

The number of ducks in the pond = 5.

Explanation:

In the above-given question,

given that,

3 ducck swim in the pond.

2 more join them.

3 + 2 = 5.

The number of ducks in the pond = 5.

Question 4.

Draw the . Write the sum. What is the sum of 1 and 4?

1 + 4 = _5_

Anwer:

The sum of 1 and 4 is 5.

Explanation:

In the above-given question,

given that,

The sum of 1 and 4 is 5.

1 + 4 = 5.

### Lesson 2.4 Problem Solving • Model Subtraction

**Essential Question**

How do you solve subtraction problems by making a model?

Tom has 6 crayons in a box. He takes 2 crayons out of the box. How many crayons are in the box now? How can you use a model to find out?

**Unlock the Problem**

What do I need to find?

What information do I need to use?

Answer:

The number of crayons in the box = 4.

Explanation:

In the above-given question,

given that,

Tom has 6 crayons in a box.

He takes 2 crayons out of the box.

6 – 2 = 4.

The number of crayons in the box = 4.

Show how to solve the problem.

6 – 2 = _4_

Answer:

The number of crayons in the box = 4.

Explanation:

In the above-given question,

given that,

Tom has 6 crayons in a box.

He takes 2 crayons out of the box.

6 – 2 = 4.

The number of crayons in the box = 4.

**HOME CONNECTION**

• Your child used a bar model to help him or her understand and solve the subtraction problem.

**Try Another Problem**

Read the problem. Use the bar model to solve. Complete the model and the number sentence.

Question 1.

There are 10 stickers. 7 stickers are orange. The rest are brown. How many stickers are brown?

10 – 7 = __

Answer:

The number of brown stickers = 3.

Explanation:

In the above-given question,

given that,

There are 10 stickers.

7 stickers are orange.

the rest are brown.

10 – 7 = 3.

The number of brown stickers = 3.

Question 2.

Eight birds were in the tree. 2 birds flew away. How many birds were left in the tree?

8 – 2 = _6_

Answer:

The number of birds in the tree= 6.

Explanation:

In the above-given question,

given that,

There are 8 birds.

2 birds flew away.

8 – 2 = 6.

The number of birds in the tree = 6.

Question 3.

There were 5 cars. Some cars drove away. Then there was 1 car. How many cars drove away?

5 – __ = 1

Answer:

The number of cars drove away = 4.

Explanation:

In the above-given question,

given that,

There are 5 cars.

some cars drove away.

there was 1 car.

5 – 4 = 1.

The number of cars drove away = 4.

**Math Talk**

**MATHEMATICAL PRACTICES**

Model What does each part of the model show?

**Share and Show MATH BOARD**

**MATHEMATICAL PRACTICE**

**Use Models** Read the problem. Use the bar model to solve. Complete the model and the number sentence.

Question 4.

Some goats were in the field. 3 goats ran away. Then there were 4 goats. How many goats were in the field before?

_7_ – 3 = 4

Answer:

The number of goats in the field before = 7.

Explanation:

In the above-given question,

given that,

some goats were in the field.

3 goats ran away.

then there were 4 goats.

7 – 3 = 4.

The number of goats in the field before = 7.

Question 5.

There are 8 sleds. Some sleds slide down the hill. Then there are 4 sleds. How many sleds slide down the hill?

8 – __ = 4

Answer:

The number of sleds slides down the hill = 4.

Explanation:

In the above-given question,

given that,

There are 8 sleds.

some sleds slide down the hill.

there are 4 sleds.

8 – 4 = 4.

The number of sleds slide down the hill = 4.

Question 6.

There are 10 buttons. 3 buttons are small. The rest are big. How many buttons are big?

10 – 3 = __

Answer:

The number of big buttons = 7.

Explanation:

In the above-given question,

given that,

There are 10 buttons.

3 buttons are small.

the rest are big.

10 – 3 = 7.

The number of big buttons = 7.

**On Your Own WRITE Math**

Solve.

Question 7.

**GO DEEPER**

There were 8 spiders in the grass. Some spiders crawled away. Then there were 3 spiders. How many spiders crawled away? Complete the number sentence.

_5_ spiders

Answer:

The number of spiders crawled away = 5.

Explanation:

In the above-given question,

given that,

there are 8 spiders.

out of 8 spiders, 5 crawled away.

there were 3 spiders.

8 – 5 = 3.

The number of spiders crawled away = 5.

Question 8.

**THINK SMARTER**

Write your own story problem using the model.

Answer:

The number of big buttons = 7.

Explanation:

In the above-given question,

given that,

There are 9 buttons.

2 buttons are small.

the rest are big.

9 – 2 = 7.

The number of big buttons = 7.

Question 9.

**THINK SMARTER**

Complete the model and number sentence. There are 7 toy rockets. 4 toy rockets are red. The rest are black. How many toy rockets are black?

7 – 4 = _3_

Answer:

The number of black rockets = 3.

Explanation:

In the above-given question,

given that,

There are 7 rockets.

4 rockets are red.

the rest are black.

7 – 4 = 3.

The number of black rockets = 3.

**TAKE HOME ACTIVITY**

• Ask your child to describe what the bottom part of a bar model means when subtracting.

### Problem Solving • Model Subtraction Homework & Practice 2.4

Read the problem. Use the model to solve. Complete the model and the number sentence.

Question 1.

There were 7 ducks in the pond. Some ducks swam away. Then there were 4 ducks. How many ducks swam away?

Answer:

The number of ducks swan away = 3.

Explanation:

In the above-given question,

given that,

There are 7 ducks.

some ducks swan away.

there were 4 ducks.

7 – 3 = 4.

The number of ducks swan away = 3.

Question 2.

Tom had 9 gifts. He gave some away. Then there were 6 gifts. How many gifts did he give away?

Answer:

The number of gifts did he give away = 3.

Explanation:

In the above-given question,

given that,

Tom had 9 gifts.

then there were 6 gifts.

9 – 3 = 6.

The number of gifts did he give away = 3.

Question 3.

Some ponies were in a barn. 3 ponies walked out. Then there were 2 ponies. How many ponies were in the barn before?

Answer:

The number of ponies was in the barn = 5.

Explanation:

In the above-given question,

given that,

some ponies were in a barn.

3 ponies walked out.

then there were 2 ponies.

5 – 3 = 2.

The number of ponies was in the barn = 5.

Question 4.

**WRITE Math**

Choose a model from a problem you solved. Write a new subtraction problem to match.

__________

__________

__________

Answer:

The number of gifts did he give away = 6.

Explanation:

In the above-given question,

given that,

Tom had 9 gifts.

then there were 6 gifts.

9 – 6 = 3.

The number of gifts did he give away = 6.

**Lesson Check**

Question 1.

Complete the model and the number sentence. There are 8 shells. 6 shells are white. The rest are pink. How many shells are pink?

__8__ – __6__ = __2_

Answer:

The number of pink shells = 2.

Explanation:

In the above-given question,

given that,

There are 8 shells.

6 shells are white.

The rest are pink.

The number of pink shells = 2.

**Spiral Review**

Question 2.

Circle the number sentences that show the same addends in a different order.

Answer:

The number sentences that show the same addends = 2 + 4 = 6 and 4 + 2 = 6.

Explanation:

In the above-given question,

given that,

The number sentences are

6 – 2 = 4, 2 + 4 = 6 and 4 + 2 = 6.

The number sentences that show the same addends = 2 + 4 = 6 and 4 + 2 = 6.

Question 3.

What is the sum? Write the sum.

Answer:

The sum for 4 + 3 = 7.

Explanation:

In the above-given question,

given that,

the sum of numbers 4 and 3.

4 + 3 = 7.

the sum for 4 + 3 = 7.

### Lesson 2.5 Use Pictures and Subtraction to Compare

**Essential Question**

How can you use pictures to compare and subtract?

**Listen and Draw**

Draw bowls to show the problems. Draw lines to match.

Answer:

The number of brown bowls = 9.

Explanation:

In the above-given question,

given that,

There are 16 bowls.

brown bowls = 9.

white bowls = 7.

16 – 7 = 9.

The number of brown bowls = 9.

**Math Talk**

**MATHEMATICAL PRACTICES**

Compare How do the drawings show the answers?

**Model and Draw**

Compare the groups. Subtract to find how many fewer or how many more.

Answer:

The more nests = 2.

Explanation:

In the above-given question,

given that,

There are 6 nests.

4 birds.

6 – 4 = 2.

the more nests = 2.

**Share and Show MATH BOARD**

Draw lines to match. Subtract to compare.

Question 1.

Answer:

The fewer flowers = 3.

Explanation:

In the above-given question,

given that,

There are 8 honey bees.

There are 5 flowers.

8 – 5 = 3.

the fewer flowers = 3.

**On Your Own**

**MATHEMATICAL PRACTICE**

**Reason Quantitatively**

Draw lines to match. Subtract to compare.

Question 2.

Answer:

The more bees = 6.

Explanation:

In the above-given question,

given that,

There are 9 bees.

there are 3 leaves.

9 – 3 = 6.

the more bees = 6.

Question 3.

Answer:

The fewer frogs = 4.

Explanation:

In the above-given question,

given that,

There are 10 leaves.

There are 6 frogs.

10 – 6 = 4.

the fewer frogs = 4.

Question 4.

**GO DEEPER**

Answer:

The fewer wood = 5.

Explanation:

In the above-given question,

given that,

There are 7 squirrles.

There are 2 wood.

7 – 2 = 5.

the fewer wood = 5.

Question 5.

**GO DEEPER**

Evie has 3 red marbles and 4 blue marbles. Kai has 6 marbles. How many more marbles does Evie have than Kai?

_1 more

Answer:

Evie have more marbles = 1 marbles.

Explanation:

In the above-given question,

given that,

Evie has 3 red marbles and 4 blue marbles.

Kai has 6 marbles.

Evie have more marbles = 1.

**Problem Solving • Applications WRITE Math**

Draw a picture to show the problem. Write a subtraction sentence that your picture shows.

Question 6.

Aki has 5 baseball bats and 3 baseballs. How many fewer baseballs does Aki have?

Answer:

The fewer baseball = 2.

Explanation:

In the above-given question,

given that,

There are 5 baseball bats.

There are 3 baseballs.

5 – 3 = 2.

the fewer baseball = 2.

Question 7.

**THINK SMARTER**

Jill has 2 more cats than she has dogs. How many fewer dogs does Jill have?

_0_ fewer dogs

Answer:

The fewer dogs = 0.

Explanation:

In the above-given question,

given that,

jill has 2 more cats than she has dogs.

There are 0 fewer dogs.

2 – 0 = 0

the fewer dogs = 0.

Question 8.

**THINK SMARTER**

Look at the picture. How many fewer leaves are there than ladybugs? Choose the answer.

Answer:

The fewer leaves = 3.

Explanation:

In the above-given question,

given that,

There are 3 fewer leaves.

There are 8 leaves.

8 – 3 = 5.

the fewer leaves = 3.

### Use Pictures and Subtraction to Compare Homework & Practice 2.5

Draw lines to match. Subtract to compare.

Question 1.

Answer:

The more dogs = 3.

Explanation:

In the above-given question,

given that,

There are 8 dogs.

there are 5 bones.

8 – 5 = 3.

the more dogs = 3.

**Problem Solving**

Draw a picture to show the problem. Write a subtraction sentence to match your picture.

Question 2.

Jo has 4 golf clubs and 2 golf balls. How many fewer golf balls does Jo have?

_4_ – _2_ = _2_

_2_ fewer

Answer:

The fewer balls = 2.

Explanation:

In the above-given question,

given that,

There are 2 fewer balls.

There are 4 golf clubs.

4 – 2 = 2.

the fewer balls = 2.

Question 3.

**WRITE Math**

Draw pictures to compare to find 8 – 2.

Answer:

The more dogs = 6.

Explanation:

In the above-given question,

given that,

There are 8 dogs.

there are 2 bones.

8 – 2 = 6.

the more dogs = 6.

**Lesson Check**

Question 1.

Draw lines to match. Subtract to compare. How many fewer are there?

Answer:

The fewer teddys = 1.

Explanation:

In the above-given question,

given that,

There is 1 fewer teddys.

There are 4 caps.

4 – 3 = 1.

the fewer teddys = 1.

**Spiral Review**

Question 2.

Draw the . Write the sum. What is the sum of 5 and 1?

5 + 1 = _6_

Answer:

The sum for 5 + 1 = 6.

Explanation:

In the above-given question,

given that,

the sum of numbers 5 and 1.

5 + 1 = 6.

the sum for 5 + 1 = 6.

Question 3.

Write the sum. What is the sum?

Answer:

The sum for 4 + 5 = 9.

Explanation:

In the above-given question,

given that,

the sum of numbers 4 and 5.

4 + 5 = 9.

the sum for 4 + 5 = 9.

Question 4.

How many flowers? Write the number.

4 flowers and 3 flowers _7_ flowers

Answer:

The sum for 4 + 3 = 7.

Explanation:

In the above-given question,

given that,

the sum of numbers 4 and 3.

4 + 3 = 7.

the sum for 4 + 3 = 7.

### Lesson 2.6 Subtract to Compare

**Essential Question**

How can you use models to compare and subtract?

**Listen and Draw**

Use to show the problem. Draw the . Model the problem using the bar model.

**Math Talk**

**MATHEMATICAL PRACTICES**

Explain how counters and a bar model can be used to find how many more puzzle pieces Mindy has than David.

**Model and Draw**

James has 4 stones. Heather has 7 stones. How many fewer stones does James have than Heather?

__ fewer stones

Answer:

The number of fewer stones = 3.

Explanation:

In the above-given question,

given that,

james has 4 stones.

heather has 7 stones.

the fewer tones = 3

7 – 4 = 3.

The number of fewer stones = 3.

**Share and Show MATH BOARD**

Read the problem. Use the bar model to solve. Write the number sentence. Then write how many.

Question 1.

Abby has 8 stamps. Ben has 6 stamps. How many more stamps does Abby have than Ben?

__ more stamps

Answer:

The number of more stamps Abby has = 2.

Explanation:

In the above-given question,

given that,

Abby has 8 stamps.

ben has 6 stamps.

Abby has more stamps = 2.

8 – 6 = 2.

The number of more stamps Abby has = 2.

Question 2.

Daniel has 3 books. Vicky has 6 books. How many fewer books does Daniel have than Vicky?

_3_ fewer books

Answer:

The number of fewer books daniel have = 3.

Explanation:

In the above-given question,

given that,

Daniel has 3 books.

Vicky has 6 books.

6 – 3 = 3.

The number of fewer books daniel have = 3.

**On Your Own**

**MATHEMATICAL PRACTICE**

**Use Models** Read the problem. Use the bar model to solve. Write the number sentence. Then write how many

Question 3.

**THINK SMARTER**

Pam has 4 marbles. Rick has 10 marbles. How many fewer marbles does Pam have than Rick?

_6_ fewer marbles

Answer:

The number of fewer marbles pam have = 6.

Explanation:

In the above-given question,

given that,

pam has 4 marbles.

Rick has 10 marbles.

10 – 4 = 6.

The number of fewer marbles pam have = 6.

Question 4.

Sally has 5 feathers. James has 2 feathers. How many more feathers does Sally have than James?

_3_ more feathers

Answer:

The number of more feathers does sally have = 3.

Explanation:

In the above-given question,

given that,

sally has 5 feathers.

james has 2 feathers.

5 – 2 = 3.

The number of more feathers does sally have = 3.

Question 5.

**GO DEEPER**

Kyle has 6 keys. Kyle has 4 more keys than Lee. How many keys does Lee have?

_2_ keys

Answer:

The number of keys lee have = 2.

Explanation:

In the above-given question,

given that,

kyle has 6 keys.

kyle has 4 more keys than lee.

6 – 4 = 2.

The number of keys lee have = 2.

**TAKE HOME ACTIVITY**

• Have your child explain how he or she solved exercise 3 using the bar model.

### Subtract to Compare Homework & practice 2.6

Read the problem. Use the bar model to solve. Write the number sentence. Then write how many.

Question 1.

Ben has 7 flowers. Tim has 5 flowers. How many fewer flowers does Tim have than Ben?

_2_ fewer flowers

Answer:

The number of fewer flowers Tim have = 2.

Explanation:

In the above-given question,

given that,

ben has 7 flowers.

Tim has 5 flowers.

7 – 5 = 2.

The number of fewer flowers Tim have = 2.

**Problem Solving**

Complete the number sentence to solve.

Question 2.

Maya has 7 pens. Sam has 1 pen. How many more pens does Maya have than Sam?

_7_ – _1_ = __6

_6_ more pens

Answer:

The number of more pens maya have = 6.

Explanation:

In the above-given question,

given that,

maya has 7 pens.

sam has 1 pen.

7 – 1 = 6.

The number of more pens maya have = 6.

Question 3.

**WRITE Math**

Write a subtract to compare problem and draw a bar model to solve it.

____________

____________

**Lesson Check**

Question 1.

Use the bar model to solve. Write the number sentence. Jesse has 2 stickers. Sara has 8 stickers. How many fewer stickers does Jesse have than Sara?

_8_ – _2 = _6_

_6_ fewer stickers

Answer:

The number of fewer stickers jesse have = 6.

Explanation:

In the above-given question,

given that,

jesse has 2 stickers.

sara has 8 stickers.

8 – 2 = 6.

The number of fewer tickers jesse have = 6.

**Spiral Review**

Question 2.

Solve. There are 6 sheep. 5 sheep walk away. How many sheep are there now?

__ sheep

Answer:

The number of sheeps = 1.

Explanation:

In the above-given question,

given that,

there are 6 sheeps.

out of 6 sheeps, 5 sheep walk away.

6 – 5 = 1.

The number of sheeps = 1.

Question 3.

Complete the bar model and the number sentence. 5 cows stand in a field. 2 more cows join them. How many cows are in the field now?

5 + 2 = __

Answer:

The number of cows in the field = 7.

Explanation:

In the above-given question,

given that,

5 cows stand in a field.

2 more coins join them.

5 + 2 = 7.

The number of cows in the field = 7.

### Subtraction Concepts Mid-Chapter Checkpoint

**Concepts and Skills**

Circle the part you are taking from the group. Then cross it out. Write how many there are now.

Question 1.

7 birds 3 birds fly away. __ birds now

Use to solve. Draw to show your work. Write the number sentence and how many.

Question 2.

There are 4 cans. 1 can is red. The rest are yellow. How many cans are yellow?

_3_ yellow cans

Answer:

The number of yellow cans = 3.

Explanation:

In the above-given question,

given that,

there are 5 cans.

out of 5 cans, 1 can is red.

the rest are yellow.

4 – 1 = 3.

The number of yellow cans= 3.

Question 3.

**THINK SMARTER**

Jennifer has 3 crayons. Brad has 9 crayons. How many fewer crayons does Jennifer have than Brad?

9 – 3 = __

Answer:

The number of fewer crayons does Jennifer have = 6.

Explanation:

In the above-given question,

given that,

Jennifer has 3 crayons.

brad has 9 crayons.

9 – 3 = 6.

The number of fewer crayons does Jennifer have = 6.

### Lesson 2.7 Subtract All or Zero

**Essential Question**

What happens when you subtract 0 from a number?

**Listen and Draw**

Use to show the problem. Draw the . Write the numbers.

Answer:

The number of yellow cans = 3.

Explanation:

In the above-given question,

given that,

there are 3 cans.

out of 3 cans, 0 can is red.

the rest are yellow.

3 – 0 = 3.

The number of yellow cans = 3.

**Math Talk**

**MATHEMATICAL PRACTICES**

**Generalize** What happens when you subtract zero from a number?

**Share and Show MATH BOARD**

Use the picture to complete the subtraction sentence.

Question 1.

_2_ – 0 = _2_

Answer:

The number of frogs = 2.

Explanation:

In the above-given question,

given that,

there are 2 frogs.

out of 2 frogs, 2 is sitting.

2 – 0 = 2.

the number of frogs = 2.

Question 2.

_2_ – _2_ = 0

Answer:

The number of frogs = 0.

Explanation:

In the above-given question,

given that,

there are 2 frogs.

out of 2 frogs, 2 are jumping.

1 – 1 = 0.

The number of frogs = 0.

Question 3.

_3_ – _3_ = 0

Answer:

The number of frogs = 0.

Explanation:

In the above-given question,

given that,

there are 6 frogs.

out of 6 frogs, 6 are jumping.

3 – 3 = 0.

The number of frogs = 0.

Question 4.

_6_ – 0 = _6_

Answer:

The number of frogs = 6.

Explanation:

In the above-given question,

given that,

there are 6 frogs.

out of 6 frogs, 6 are sitting.

6 – 0 = 6.

The number of frogs = 6.

Question 5.

_4_ – 0 = _4_

Answer:

The number of frogs = 4.

Explanation:

In the above-given question,

given that,

there are 4 frogs.

out of 4 frogs, 4 are sitting.

4 – 0 = 4.

The number of frogs = 4.

Question 6.

_2_ – _2_ = 0

Answer:

The number of frogs = 0.

Explanation:

In the above-given question,

given that,

there are 4 frogs.

out of 4 frogs, 4 are jumping.

2 – 2 = 0.

The number of frogs = 0.

**On Your Own**

**MATHEMATICAL PRACTICE**

**Use Repeated Reasoning**

Complete the subtraction sentence.

Question 7.

1 – 0 = _1_

Answer:

The number of squirrels = 1.

Explanation:

In the above-given question,

given that,

there is 1 squirrel.

out of 1 squirrel,

1 – 0 = 1.

The number of squirrels = 0.

Question 8.

_0_ = 6 – 6

Answer:

The number of squirrels = 0.

Explanation:

In the above-given question,

given that,

there is 6 squirrels.

out of 6 squirrels, 6 are jumping.

6 – 6 = 0.

The number of squirrels = 0.

Question 9.

0 = _3_ – 3

Answer:

The number of squirrels = 3.

Explanation:

In the above-given question,

given that,

there is 3 squirrels.

out of 3 squirrels, 3 are jumping.

3 – 3 = 0.

The number of squirrels = 3.

Question 10.

1 – 1 = _0_

Answer:

The number of squirrels = 0.

Explanation:

In the above-given question,

given that,

there is 1 squirrel.

out of 1 squirrel, 1 is jumping.

1 – 1 = 0.

The number of squirrels = 0.

Question 11.

0 = _3_ – 3

Answer:

3 – 0 = 3.

0 = 3 – 3.

Explanation:

In the above-given question,

Given that,

3 – 0 = 3.

0 = 3 – 3.

Question 12.

1 – 1 = _0_

Answer:

8 = 8 – 0.

1 – 1 = 0

Explanation:

In the above-given question,

Given that,

8 = 8 – 0.

1 – 1 = 0.

Question 13.

7 – _0 = 7

Answer:

7 – 0 = 7.

Explanation:

In the above-given question,

Given that,

7 – 0 = 7.

Question 14.

8 – 8 = _0__

Answer:

8 – 8 = 0.

Explanation:

In the above-given question,

Given that,

8 – 8 = 0.

Question 15.

5 – 5 = _0_

Answer:

5 – 5 = 0.

Explanation:

In the above-given question,

Given that,

5 – 5 = 0.

Question 16.

_0_ = 0 – 0

Answer:

0 = 0 – 0

Explanation:

In the above-given question,

Given that,

0 = 0 – 0.

**GO DEEPER**

Choose numbers to complete the subtraction sentence.

Question 17.

_1_ – _1_ = 0

Answer:

1 – 1 = 0.

Explanation:

In the above-given question,

Given that,

1 – 1 = 0.

Question 18.

_2_ – _2_ = 0

Answer:

2 – 2 = 0.

Explanation:

In the above-given question,

Given that,

2 – 2 = 0.

**Problem Solving • Applications**

Write the number sentence and tell how many.

Question 19.

There are 6 bookmarks on the table. 0 are blue and the rest are yellow. How many bookmarks are yellow?

__ yellow bookmarks

Answer:

The number of yellow bookmarks = 6.

Explanation:

In the above-given question,

given that,

There are 6 bookmarks on the table.

0 are blue and the rest are yellow.

6 – 0 = 6.

The number of yellow bookmarks = 6.

Question 20.

Jared has 8 pictures. He gave some to Wendy. Jared has 0 pictures now. How many pictures did Jared give to Wendy?

Answer:

The number of pictures jared give to wendy = 8.

Explanation:

In the above-given question,

given that,

jared has 8 pictures.

he gave some to wendy.

jared has 0 pictures.

8 – 0 = 8.

The number of pictures jared give to wendy = 8.

Question 21.

**THINK SMARTER**

Kevin has 3 fewer leaves than Sandy. Sandy has 3 leaves. How many leaves does Kevin have?

Answer:

The number of leaves kevin have = 0.

Explanation:

In the above-given question,

given that,

kevin has 3 fewer leaves than sandy.

sandy has 3 leaves.

3 – 3 = 0.

The number of leaves kevin have = 0.

Question 22.

**THINK SMARTER**

Is the answer correct? Choose Yes or No.

Answer:

5 – 0 = 5.

5 – 0 = 5.

5 – 5 = 0.

Explanation:

In the above-given question,

given that,

The numbers are

5 – 0 = 5.

5 – 0 = 5.

5 – 5 = 0.

**TAKE HOME ACTIVITY**

• Have your child explain how 4 − 4 and 4 − 0 are different.

### Subtract All or Zero Homework & Practice 2.7

Complete the subtraction sentence.

Question 1.

3 – 0 = _3_

Answer:

The number of parrots = 3.

Explanation:

In the above-given question,

given that,

there are 3 parrots.

out of 3 parrots, 3 are sitting.

3 – 0 = 3.

The number of parrots = 3.

Question 2.

2 – 2 = _0_

Answer:

The number of parrots = 0.

Explanation:

In the above-given question,

given that,

there are 2 parrots.

out of 2 parrots, 2 are jumping.

2 – 2 = 0.

The number of parrots = 0.

Question 3.

5 – 0 = _5_

Answer:

The number of parrots = 5.

Explanation:

In the above-given question,

given that,

there are 5 parrots.

out of 5 parrots, 5 are sitting.

5 – 0 = 5.

The number of parrots = 5.

Question 4.

_1_ = 1 – 0

Answer:

The number of parrots = 1.

Explanation:

In the above-given question,

given that,

there is 1 parrot.

out of 1 parrot, 1 is sitting.

1 – 0 = 1.

The number of parrots = 1.

Question 5.

6 – 6 = _0_

Answer:

The number of parrots = 0.

Explanation:

In the above-given question,

given that,

there are 6 parrots.

out of 6 parrots, 6 are jumping.

6 – 6 = 0.

The number of parrots = 0.

Question 6.

0 = _8_ – 8

Answer:

The number of parrots = 3.

Explanation:

In the above-given question,

given that,

there are 3 parrots.

out of 3 parrots, 3 are sitting.

3 – 0 = 3.

The number of parrots = 3.

**Problem Solving**

Write the number sentence and tell how many.

Question 7.

There are 9 books on the shelf. 0 are blue and the rest are green. How many books are green?

_9_ green books

Answer:

The number of green books = 9

Explanation:

In the above-given question,

given that,

There are 9 books on the table.

0 are blue and the rest are green.

9 – 0 = 9.

The number of green books = 9.

Question 8.

**WRITE Math**

Use pictures and numbers to show 2 − 0.

Answer:

The number of parrots = 2.

Explanation:

In the above-given question,

given that,

there are 2 parrots.

out of 2 parrots, 2 are sitting.

2 – 0 = 2.

The number of parrots = 2.

**Lesson Check**

Question 1.

Complete the subtraction sentence. What is the difference for 4 – 0?

_4_ – _0_ = _4_

Answer:

4 – 0 = 4.

Explanation:

In the above-given question,

Given that,

4 – 0 = 4.

Question 2.

Complete the subtraction sentence. What is the difference for 6 – 6?

_6_ – _6_ = _0_

Answer:

6 – 6 = 0.

Explanation:

In the above-given question,

Given that,

6 – 6 = 0.

**Spiral Review**

Question 3.

Write the number. How many bunnies?

3 bunnies and 3 bunnies _6_ bunnies

Answer:

The number of bunnies = 6.

Explanation:

In the above-given question,

Given that,

3 bunnies and 3 bunnies.

3 + 3 = 6.

Question 4.

Complete an addition sentence for each model.

Answer:

9 + 1 = 10.

2 + 7 = 9.

3 + 4 = 7.

4 + 4 = 8.

Explanation:

In the above-given question,

given that,

the cubes

9 + 1 = 10.

2 + 7 = 9.

3 + 4 = 7.

4 + 4 = 8.

### Lesson 2.8 Algebra • Take Apart Numbers

**Essential Question**

How can you show all the ways to take apart a number?

**Listen and Draw**

Use to show all the ways to take apart 5. Color and draw to show your work.

**Math Talk**

**MATHEMATICAL PRACTICES**

Apply How do you know you showed all the ways?

**Share and Show MATH BOARD**

Use Color and draw to show how to take apart 9. Complete the subtraction sentence.

Question 3.

9 – _2_ = _7_

Answer:

9 – 2 = 7.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 2 cross out.

9 – 2 = 7.

Question 4.

9 – _3_ = _6_

Answer:

9 – 3 = 6.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 3 cross out.

9 – 3 = 6

Question 5.

9 – _0_ = _0_

Answer:

9 – 0 = 0.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 0 cross out.

9 – 0 = 9.

Question 6.

9 – _2_ = _7_

Answer:

9 – 2 = 7.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 2 cross out.

9 – 2 = 7.

Question 7.

9 – _3_ = _6_

Answer:

9 – 3 = 6.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 3 cross out.

9 – 3 = 6.

Question 8.

9 – _4_ = _5_

Answer:

9 – 4 = 5.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 4 cross out.

9 – 4 = 5.

Question 9.

9 – _5_ = _4_

Answer:

9 – 5 = 4.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 5 cross out.

9 – 5 = 4.

Question 10.

9 – _6_ = _3_

Answer:

9 – 6 = 3.

Explanation:

In the above-given question,

given that,

there are 9 boxes, 6 cross out.

9 – 6 = 3.

**On Your Own**

**MATHEMATICAL PRACTICE**

Look for a Pattern Use . Color and draw to show how to take apart 10. Complete the subtraction sentence.

Question 11.

10 – _1_ = _9_

Answer:

10 – 1 = 9.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 1 cross out.

10 – 1 = 9.

Question 12.

10 – _2_ = _8

Answer:

10 – 2 = 8.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 2 cross out.

10 – 2 = 8.

Question 13.

10 – _3_ = _6

Answer:

10 – 3 = 6.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 3 cross out.

10 – 3 = 6.

Question 14.

10 – _4_ = _6_

Answer:

10 – 4 = 6.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 4 cross out.

10 – 4 = 6.

Question 15.

10 – _5_ = _5_

Answer:

10 – 5 = 5.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 5 cross out.

10 – 5 = 5.

Question 16.

10 – __ = __

Answer:

10 – 6 = 9.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 6 cross out.

10 – 6 = 4.

Question 17.

10 – __ = __

Answer:

10 – 7 = 3.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 7 cross out.

10 – 7 = 3.

Question 18.

10 – _8_ = _2_

Answer:

10 – 8 = 2.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 8 cross out.

10 – 8 = 2.

Question 19.

10 – _9_ = _1_

Answer:

10 – 9 = 1.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 9 cross out.

10 – 9 = 1.

+Question 20.

10 – __ = __

Answer:

10 – 10 = 0.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 10 cross out.

10 – 10 = 0.

Question 21.

10 – __ = __

Answer:

10 – 0 = 10.

Explanation:

In the above-given question,

given that,

there are 10 boxes, 0 cross out.

10 – 0 = 10.

**Problem Solving • Applications WRITE Math**

Question 22.

James has 10 books. He shares them with his sister. Draw one way he can share the books.

Answer:

10 – 1 = 9.

Explanation:

In the above-given question,

given that,

james has 10 books, 1 cross out.

10 – 1 = 9.

Question 23.

**THINK SMARTER**

Hannah has 7 shells. She shares them with Emily. Draw two ways she can share the shells.

Answer:

7 – 2 = 5.

Explanation:

In the above-given question,

given that,

there are 7 shells, 1 cross out.

7 – 2 = 5.

Question 24.

**GO DEEPER**

I use 6 marbles to play a game. I lose 1 marble. Then I lose 1 more marble. How many marbles do I have left?

__4_ marbles

Answer:

The number of marbles i have left = 4.

Explanation:

In the above-given question,

given that,

I use 6 marbles to play a game.

I lose 1 marble.

Then i lose 1 more marble.

6 – 2 = 4.

The number of marbles i have left = 4.

Question 25.

**THINK SMARTER**

Circle all the models that show a way to take apart 8.

Answer:

8 – 2 = 6.

8 – 5 = 3

Explanation:

In the above-given question,

given that,

there are 8 boxes, 2 cross out.

8 – 2 = 6.

there are 8 boxes, 5 cross out.

8 – 5 = 3.

**TAKE HOME ACTIVITY**

• Write 5 − 0 = 5 and 5 − 1 = 4. Ask your child to subtract from 5 another way. Take turns to show all the ways to subtract from 5.

Answer:

5 – 2 = 3.

5 – 3 = 2.

5 – 4 = 1.

5 – 5 = 0.

Explanation:

In the above-given question,

given that,

5 – 2 = 3.

5 – 3 = 2.

5 – 4 = 1.

5 – 5 = 0.

Algebra • Take Apart Numbers Homework & Practice 2.8

Use Color and draw to show how to take apart 5. Complete the subtraction sentence.

Question 1.

5 – _0_ = _5_

Answer:

5 – 0 = 5.

Explanation:

In the above-given question,

given that,

there are 5 boxes, 0 cross out.

5 – 0 = 5.

Question 2.

5 – _1_ = _4_

Answer:

5 – 1 = 5.

Explanation:

In the above-given question,

given that,

there are 5 boxes, 1 cross out.

5 – 1 = 5.

Question 3.

5 – _2_ = _3_

Answer:

5 – 2 = 3.

Explanation:

In the above-given question,

given that,

there are 5 boxes, 2 cross out.

5 – 2 = 3.

Question 4.

5 – _3_ = _2_

Answer:

5 – 3 = 2.

Explanation:

In the above-given question,

given that,

there are 5 boxes, 2 cross out.

5 – 3 = 2.

Question 5.

5 – _4_ = _1_

Answer:

5 – 4 = 1.

Explanation:

In the above-given question,

given that,

there are 5 boxes, 1 cross out.

5 – 4 = 1.

Question 6.

5 – _5_ = _0_

Answer:

5 – 5 = 0.

Explanation:

In the above-given question,

given that,

there are 5 boxes, 5 cross out.

5 – 5 = 0.

**Problem Solving**

Solve.

Question 7.

Joe has 9 marbles. He gives them all to his sister. How many marbles does he have now?

_0_ marbles

Answer:

The number of marbles joe has left = 0.

Explanation:

In the above-given question,

given that,

Joe has 9 marbles.

He gives them all to his sister.

9 – 9 = 0

The number of marbles joe has left = 0.

Question 8.

**WRITE Math**

Use pictures and numbers to show all the ways to take apart 8.

**Lesson Check**

Question 1.

Draw the . Show a way to take apart 8. Complete a number sentence to match your model.

8 – __ = __

**Spiral Review**

Question 2.

What is the sum? Write the sum.

Answer:

The sum for 6 + 4 = 10.

Explanation:

In the above-given question,

given that,

the sum of numbers 4 and 6.

4 + 6 = 10.

the sum for 4 + 6 = 10.

Question 3.

Solve. There are 7 fish. 3 fish swim away. How many fish are there now?

_4_ fish

Answer:

The number of fish = 4.

Explanation:

In the above-given question,

given that,

there are 7 fish.

out of 7 fish, 3 fish swim away.

7 – 3 = 4.

The number of fish = 4.

Question 4.

Solve. There are 10 bugs. 8 hop away. How many bugs are there now?

__ bugs

Answer:

The number of bugs = 2.

Explanation:

In the above-given question,

given that,

there are 10 bugs.

out of 10 bugs, 8 hop away.

10 – 8 = 2.

The number of bugs = 2.

### Lesson 2.9 Subtraction from 10 or Less

**Essential Question**

Why are some subtraction facts easy to subtract?

**Listen and Draw**

Draw a picture to show the problem. Then write the subtraction problem two different ways.

Answer:

The number of fish = 4.

Explanation:

In the above-given question,

given that,

there are 8 fish.

out of 8 fish, 4 fish swim away.

8 – 4 = 4.

The number of fish = 4.

Answer:

The number of fish = 2.

Explanation:

In the above-given question,

given that,

there are 8 fish.

out of 8 fish, 6 fish swim away.

8 – 6 = 2.

The number of fish = 2.

**Math Talk**

**MATHEMATICAL PRACTICES**

Look at the top problem. Explain why the difference is the same.

**Model and Draw**

Write the subtraction problem.

Answer:

The number of capsicums = 2.

Explanation:

In the above-given question,

given that,

there are 8 capsicums.

out of 8 capsicums, 6 take away.

8 – 6 = 2.

The number of capsicums = 2.

Answer:

The number of birds = 3.

Explanation:

In the above-given question,

given that,

there are 7 birds.

out of 7 birds, 4 fly away.

7 – 4 = 3.

The number of birds = 3.

**Share and Show MATH BOARD**

Write the subtraction problem.

Question 1.

Answer:

The number of bugs = 6.

Explanation:

In the above-given question,

given that,

there are 10 bugs.

out of 10 bugs, 4 fly away.

10 – 4 = 6.

The number of bugs = 6.

Question 2.

Answer:

The number of tomatoes = 7.

Explanation:

In the above-given question,

given that,

there are 7 tomatoes.

out of 7 tomatoes, 2 takes away.

7 – 2 = 5.

The number of tomatoes = 7

Question 3.

Answer:

The number of leaves = 2.

Explanation:

In the above-given question,

given that,

there are 4 leaves.

out of 4 leaves, 2 take away.

4 – 2 = 2.

The number of leaves = 2.

Question 4.

Answer:

The number of rabbits = 1.

Explanation:

In the above-given question,

given that,

there are 3 rabbits.

out of 3 rabbits, 2 takes away.

3 – 2 = 1.

The number of rabbits = 1.

**On Your Own**

**MATHEMATICAL PRACTICE**

**Attend to Precision**

Write the difference.

Question 5.

Answer:

The difference for 2 – 1 = 1.

Explanation:

In the above-given question,

given that,

the difference of numbers 2 and 1.

2 – 1 = 1.

the difference for 2 – 1 = 1.

Question 6.

Answer:

The difference for 3 – 3 = 0.

Explanation:

In the above-given question,

given that,

the difference of numbers 3 and 3.

3 – 3 = 0.

the difference for 3 – 3 = 0.

Question 7.

Answer:

The difference for 5 – 4 = 1.

Explanation:

In the above-given question,

given that,

the difference of numbers 5 and 4.

5 – 4 = 1.

the difference for 5 – 4 = 1.

Question 8.

Answer:

The difference for 7 – 3 = 4.

Explanation:

In the above-given question,

given that,

the difference of numbers 7 and 3.

7 – 3 = 4.

the difference for 7 – 3 = 4.

Question 9.

Answer:

The difference for 6 – 2 = 4.

Explanation:

In the above-given question,

given that,

the difference of numbers 2 and 6.

6 – 2 = 4.

the difference for 6 – 2 = 4.

Question 10.

Answer:

The difference for 10 – 7 = 3.

Explanation:

In the above-given question,

given that,

the difference of numbers 10 and 7.

10 – 7 = 3.

the difference for 10 – 7 = 3.

Question 11.

Answer:

The difference for 9 – 9 = 0.

Explanation:

In the above-given question,

given that,

the difference of numbers 9 and 9.

9 – 9 = 0.

the difference for 9 – 9 = 0.

Question 12.

Answer:

The difference for 8 – 2 = 6.

Explanation:

In the above-given question,

given that,

the difference of numbers 8 and 2.

8 – 2 = 6.

the difference for 8 – 2 = 6.

Question 13.

Answer:

The difference for 7 – 4 = 3.

Explanation:

In the above-given question,

given that,

the difference of numbers 7 and 4.

7 – 4 = 3.

the difference for 7 – 4 = 3.

Question 14.

Answer:

The difference for 6 – 3 = 3.

Explanation:

In the above-given question,

given that,

the difference of numbers 6 and 3.

6 – 3 = 3.

the difference for 6 – 3 = 3.

Question 15.

Answer:

The difference for 8 – 0 = 8.

Explanation:

In the above-given question,

given that,

the difference of numbers 8 and 0.

8 – 0 = 8.

the difference for 8 – 0 = 8.

Question 16.

Answer:

The difference for 9 – 4 = 5.

Explanation:

In the above-given question,

given that,

the difference of numbers 9 and 4.

9 – 4 = 5.

the difference for 9 – 4 = 5.

Question 17.

**THINK SMARTER**

Write the number sentence. 9 ants are on a log. 3 ants walk away. How many ants are still on the log?

_9_ – _3_ = _6_

Answer:

The number of ants = 6.

Explanation:

In the above-given question,

given that,

there are 9 ants.

out of 9 ants, 3 ants walk away.

9 – 3 = 6.

The number of ants = 6.

Question 18.

**THINK SMARTER**

Explain how the picture shows subtraction.

Answer:

The number of cherries = 4.

Explanation:

In the above-given question,

given that,

there are 9 cherries.

out of 9 cherries, 5 take away.

9 – 5 = 4.

The number of cherries = 4.

**Problem Solving • Applications**

Question 19.

**GO DEEPER**

Draw a picture to show subtraction. Write the subtraction problem to match the picture.

Answer:

The number of bugs = 4.

Explanation:

In the above-given question,

given that,

there are 7 bugs.

out of 7 bugs, 3 hop away.

7 – 3 = 4.

The number of bugs = 4.

Question 20.

Write the number sentence. 10 ducks are at the pond. All the ducks fly away. How many ducks are still at the pond?

_10_ – _10_ = _0_

Answer:

The number of ducks = 0.

Explanation:

In the above-given question,

given that,

there are 10 ducks.

out of 10 ducks, 10 fly away.

10 – 10 = 0.

The number of ducks = 0.

Question 21.

**THINK SMARTER**

Write all of the subtraction sentences that can tell the story. Tell how you know. Max has 6 carrots. He eats more than 1 carrot. He has more than 1 carrot left. How many carrots are left?

___________________

___________________

___________________

Answer:

The number of carrots = 2.

Explanation:

In the above-given question,

given that,

Max has 6 carrots.

He eats more than 1 carrot.

6 – 4 = 2.

The number of carrots = 2.

**TAKE HOME ACTIVITY**

• Tell your child a subtraction problem. Have your child write the problem to subtract two different ways. Then have your child find the difference.

### Subtraction from 10 or Less Homework & Practice 2.9

Write the difference.

Question 1.

Answer:

The difference for 5 – 1 = 4.

Explanation:

In the above-given question,

given that,

the difference of numbers 5 and 1.

5 – 1 = 4.

the difference for 5 – 1 = 4.

Question 2.

Answer:

The difference for 3 – 2 = 1.

Explanation:

In the above-given question,

given that,

the difference of numbers 3 and 2.

3 – 2 = 1.

the difference for 3 – 2 = 1.

Question 3.

Answer:

The difference for 8 – 3 = 5.

Explanation:

In the above-given question,

given that,

the difference of numbers 8 and 3.

8 – 3 = 5.

the difference for 8 – 3 = 5.

Question 4.

Answer:

The difference for 6 – 4 = 2.

Explanation:

In the above-given question,

given that,

the difference of numbers 6 and 4.

6 – 4 = 2.

the difference for 6 – 4 = 2.

Question 5.

Answer:

The difference for 7 – 0 = 7.

Explanation:

In the above-given question,

given that,

the difference of numbers 7 and 0.

7 – 0 = 7.

the difference for 7 – 0 = 7.

Question 6.

Answer:

The difference for 5 – 3 = 2.

Explanation:

In the above-given question,

given that,

the difference of numbers 5 and 3.

5 – 3 = 2.

the difference for 5 – 3 = 2.

Question 7.

Answer:

The difference for 4 – 4 = 0.

Explanation:

In the above-given question,

given that,

the difference of numbers 4 and 4.

4 – 4 = 0.

the difference for 4 – 4 = 0.

Question 8.

Answer:

The difference for 8 – 1 = 7.

Explanation:

In the above-given question,

given that,

the difference of numbers 8 and 1.

8 – 1 = 7.

the difference for 8 – 1 = 7.

**Problem Solving**

**Solve.**

Question 9.

6 birds are in the tree. None of the birds fly away. How many birds are left?

_6_ – _0_ = _6_

Answer:

The number of birds = 6.

Explanation:

In the above-given question,

given that,

there are 6 birds.

out of 6 birds, 0 fly away.

6 – 0 = 6.

The number of birds = 6.

Question 10.

**WRITE Math** Find 10 – 3. Write the subtraction fact two ways.

___________________

___________________

___________________

Answer:

The difference for 10 – 3 = 6.

Explanation:

In the above-given question,

given that,

the difference of numbers 10 and 3.

10 – 3 = 6.

the difference for 10 – 3 = 6.

**Lesson Check**

Question 1.

Write the difference.

Answer:

The difference for 4 – 0 = 4.

Explanation:

In the above-given question,

given that,

the difference of numbers 4 and 0.

4 – 0 = 4.

the difference for 4 – 0 = 4.

**Spiral Review**

Question 2.

Solve. Write a number sentence. There are 8 pens. 3 pens are blue. The rest are red. How many pens are red?

_8_ – _3_ = 5

Answer:

The number of red pens = 5.

Explanation:

In the above-given question,

given that,

there are 8 pens.

out of 8 pens, 3 pens are blue.

8 – 3 = 5.

The number of red pens = 5.

Question 3.

Circle the number sentences that show the same addends in a different order.

Answer:

The number sentences that show the same addends = 5 + 4 = 9 and 4 + 5 = 9.

Explanation:

In the above-given question,

given that,

The number sentences are

4 – 9 = 5, 5 + 4 = 9 and 4 + 5 = 9.

The number sentences that show the same addends = 5 + 4 = 9 and 4 + 5 = 9.

### Subtraction Concepts Chapter 2 Review/Test

Question 1.

Circle the part you are taking from the group. Then cross it out. Write how many there are now.

5 zebras 3 zebras walk away. __ zebras now

Answer:

The number of zebras = 2.

Explanation:

In the above-given question,

given that,

there are 5 zebras.

out of 5 zebras, 3 walk away.

5 – 3 = 2.

The number of zebras = 2.

**GO DEEPER**

Circle the part you take away from the group. Then cross it out. Write the difference.

Question 2.

There are 6 cats. 5 cats run away.

6 – 5 = _1_

Answer:

The number of cats = 1.

Explanation:

In the above-given question,

given that,

there are 6 cats.

out of 6 cats, 5 walk away.

6 – 5 = 1.

The number of cats = 1.

Question 3.

There are 4 dogs. 1 dog runs away.

4 – 1 = _3_

Answer:

The number of dogs = 3.

Explanation:

In the above-given question,

given that,

there are 4 dogs.

out of 4 dogs, 1 walk away.

4 – 1 = 3.

The number of dogs = 3.

Question 4.

Is the subtraction sentence true? Choose Yes or No.

Answer:

5 – 5 = 0.

2 – 2 = 0.

4 – 0 = 4

Explanation:

In the above-given question,

given that,

the numbers are

5 – 5 = 0.

2 – 2 = 0.

4 – 0 = 4

Question 5.

Color to solve. Write the number sentence and how many.

There are 9 pencils. 5 pencils are red. The rest are yellow. How many pencils are yellow?

__ yellow pencils

Question 6.

Read the problem. Use the model to solve. Complete the model and the number sentence.

There are 6 frogs on a log. 1 frog is big. The others are small. How many frogs are small?

6 – 1 = _5_

Answer:

The small frogs = 5.

Explanation:

In the above-given question,

given that,

There are 6 frogs.

1 frog is big.

6 – 1 = 5.

the small frogs = 5.

Question 7.

Look at the picture. How many fewer bats are there than balls? Choose the number.

Answer:

The fewer bats = 2.

Explanation:

In the above-given question,

given that,

There are 5 balls.

There are 3 bats.

5 – 3 = 2.

the fewer bats = 2.

Question 8.

Read the problem. Use the bar model to solve. Maria has 2 rocks. Peter has 8 rocks. How many more rocks does Peter have than Maria?

_6_ rocks

Answer:

The rocks does peter have = 6.

Explanation:

In the above-given question,

given that,

Peter has 8 rocks.

Maria has 2 rocks.

8 – 2 = 6.

the rocks peter have = 6.

Question 9.

The models show two ways to take apart 6. Complete the subtraction sentences. Use these numbers.

Answer:

The difference for 6 – 1 = 5.

Explanation:

In the above-given question,

given that,

the difference of numbers 6 and 1.

6 – 1 = 5.

the difference for 6 – 1 = 5.

Answer:

The difference for 6 – 2 = 4.

Explanation:

In the above-given question,

given that,

the difference of numbers 6 and 2.

6 – 2 = 4.

the difference for 6 – 2 = 4.

Question 10.

Write the subtraction sentence in the box that shows the difference.

Answer:

The difference for 10 – 5 = 5.

Explanation:

In the above-given question,

given that,

the difference of numbers 10 and 5.

10 – 5 = 5.

the difference for 10 – 5 = 5.

Answer:

The difference for 5 – 1 = 4.

Explanation:

In the above-given question,

given that,

the difference of numbers 5 and 1.

5 – 1 = 4.

the difference for 5 – 1 = 4.

Answer:

The difference for 7 – 4 = 3.

Explanation:

In the above-given question,

given that,

the difference of numbers 7 and 4.

7 – 4 = 3.

the difference for 7 – 4 = 3.

Question 11.

**THINK SMARTER**

Read the problem. Draw a model to solve. Complete the number sentence.

Mr. Bear catches 8 fish. He takes 3 fish home. He throws the other fish back in the water. How many fish does he throw back in the water?

_8_ – _3_= _5_ fish

Answer:

The number of fishes = 5.

Explanation:

In the above-given question,

given that,

there are 8 fishes.

out of 8 fish, he takes 3 fish home.

8 – 3 = 5.

The number of fish = 5.

Question 12.

Write the subtraction sentence the picture shows.

_8_ – _3_ = _5_

Explain.

____________

____________

____________

Answer:

The number of flowers = 5.

Explanation:

In the above-given question,

given that,

there are 8 flowers.

out of 8 flowers, 3 take away.

8 – 3 = 5.

The number of flowers = 5.