Engage NY Eureka Math 2nd Grade Module 7 Lesson 16 Answer Key
Eureka Math Grade 2 Module 7 Lesson 16 Sprint Answer Key
A. Adding and Subtracting by 3
Question 1.
0 + 3 =
Answer:
0 + 3 = 3
Explanation:
Adding any number to zero gives the sum the number itself.
0 + 3 = 3.
Question 2.
3 + 3 =
Answer:
3 + 3 = 6
Question 3.
6 + 3 =
Answer:
6 + 3 = 9
Question 4.
9 + 3 =
Answer:
9 + 3 = 12
Explanation:
Adding 9 and 3 gives the sum 12.
Here 1 is carried to the tens place and 2 is represented in the ones place.
Sum = 12.
Question 5.
12 + 3 =
Answer:
12 + 3 = 15
Question 6.
15 + 3 =
Answer:
15 + 3 = 18
Question 7.
18 + 3 =
Answer:
18 + 3 = 21
Question 8.
21 + 3 =
Answer:
21 + 3 = 24
Question 9.
24 + 3 =
Answer:
24 + 3 = 27
Question 10.
27 + 3 =
Answer:
27 + 3 = 30
Question 11.
30 – 3 =
Answer:
30 – 3 = 27
Question 12.
27 – 3 =
Answer:
27 – 3 = 24
Question 13.
24 – 3 =
Answer:
24 – 3 = 21
Question 14.
21 – 3 =
Answer:
21 – 3 = 18
Question 15.
18 – 3 =
Answer:
18 – 3 = 15
Question 16.
15 – 3 =
Answer:
15 – 3 = 12
Question 17.
12 – 3 =
Answer:
12 – 3 = 9
Question 18.
9 – 3 =
Answer:
9 – 3 = 6
Question 19.
6 – 3 =
Answer:
6 – 3 = 3
Question 20.
3 – 3 =
Answer:
3 – 3 = 0
Question 21.
3 + 0 =
Answer:
3 + 0 = 3
Question 22.
3 + 3 =
Answer:
3 + 3 = 6
Question 23.
6 + 3 =
Answer:
6 + 3 = 9
Question 24.
9 + 3 =
Answer:
9 + 3 = 12
Question 25.
12 + 3 =
Answer:
12 + 3 = 15
Question 26.
15 + 3 =
Answer:
15 + 3 = 18
Question 27.
18 + 3 =
Answer:
18 + 3 = 21
Question 28.
21 + 3 =
Answer:
21 + 3 = 24
Question 29.
24 + 3 =
Answer:
24 + 3 = 27
Question 30.
27 + 3 =
Answer:
27 + 3 = 30
Question 31.
0 + 33 =
Answer:
0 + 33 = 33
Question 32.
33 + 33 =
Answer:
33 + 33 = 66
Explanation:
Given Two 2 digit numbers.
Adding two 2 digit number we add the ones place first and then the tens place.
ones place = 3+3 = 6, ten place = 3 + 3 = 6.
Sum = 66.
Question 33.
66 + 33 =
Answer:
66 + 33 = 99
Question 34.
33 + 66 =
Answer:
33 + 66 = 99
Question 35.
99 – 33 =
Answer:
99 – 33 = 66
Question 36.
66 – 33 =
Answer:
66 – 33 = 33
Question 37.
999 – 333 =
Answer:
999 – 333 = 666
Explanation:
Here a 3 digit number is subtracted from a 3 digit number.
First ones places are subtracted then tens place and then hundreds place.
9 – 3 = 6, 9 – 3 = 6, 9 – 3 = 6
Difference = 666.
Question 38.
33 – 33 =
Answer:
33 – 33 = 0
Question 39.
33 + 0 =
Answer:
33 + 0 = 33
Question 40.
30 + 3 =
Answer:
30 + 3 = 33
Question 41.
33 + 3 =
Answer:
33 + 3 = 36
Question 42.
36 + 3 =
Answer:
36 + 3 = 39
Question 43.
63 + 33 =
Answer:
63 + 33 = 96
Question 44.
63 + 36 =
Answer:
63 + 36 = 99.
Explanation:
Given Two 2 digit numbers.
Adding two 2 digit numbers 63 , 36 we add the ones place first and then the tens place.
ones place = 3+6 =9 , ten place = 6+ 3 = 9.
Sum = 99.
B. Adding and Subtracting by 3
Question 1.
3 + 0 =
Answer:
3 + 0 = 3
Question 2.
3 + 3 =
Answer:
3 + 3 = 6
Question 3.
3 + 6 =
Answer:
3 + 6 = 9
Question 4.
3 + 9 =
Answer:
3 + 9 = 12
Question 5.
3 + 12 =
Answer:
3 + 12 = 15
Question 6.
3 + 15 =
Answer:
3 + 15 = 18
Question 7.
3 + 18 =
Answer:
3 + 18 = 21
Question 8.
3 + 21 =
Answer:
3 + 21 = 24
Question 9.
3 + 24 =
Answer:
3 + 24 = 27
Question 10.
3 + 27 =
Answer:
3 + 27 = 30
Question 11.
30 – 3 =
Answer:
30 – 3 = 27
Explanation:
Subtracting a one digit number from a two digit number.first subtract ones places 0 – 3 since 0 is less than 3 we borrow 1 from the tens place and make 10 in the ones place. 10 – 3 = 7. Since we borrowed 1 from 3 tens place 3 will become 2.
difference is 27.
Question 12.
27 – 3 =
Answer:
27 – 3 = 24
Question 13.
24 – 3 =
Answer:
24 – 3 = 21
Question 14.
21 – 3 =
Answer:
21 – 3 = 18
Question 15.
18 – 3 =
Answer:
18 – 3 = 15
Question 16.
15 – 3 =
Answer:
15 – 3 = 12
Question 17.
12 – 3 =
Answer:
12 – 3 = 9
Question 18.
9 – 3 =
Answer:
9 – 3 = 6
Question 19.
6 – 3 =
Answer:
6 – 3 = 3
Question 20.
3 – 3 =
Answer:
3 – 3 = 0
Question 21.
0 + 3 =
Answer:
0 + 3 = 3
Question 22.
3 + 3 =
Answer:
3 + 3 = 6
Question 23.
6 + 3 =
Answer:
6 + 3 = 9
Question 24.
9 + 3 =
Answer:
9 + 3 = 12
Question 25.
12 + 3 =
Answer:
12 + 3 = 15
Question 26.
15 + 3 =
Answer:
15 + 3 = 18
Question 27.
18 + 3 =
Answer:
18 + 3 = 21
Question 28.
21 + 3 =
Answer:
21 + 3 = 24
Question 29.
24 + 3 =
Answer:
24 + 3 = 27
Question 30.
27 + 3 =
Answer:
27 + 3 = 30
Question 31.
0 + 33 =
Answer:
0 + 33 = 33
Question 32.
33 + 33 =
Answer:
33 + 33 = 66
Question 33.
33 + 66 =
Answer:
33 + 66 = 99
Question 34.
66 + 33 =
Answer:
66 + 33 = 99
Question 35.
99 – 33 =
Answer:
99 – 33 = 66
Question 36.
66 – 33 =
Answer:
66 – 33 = 33
Question 37.
999 – 333 =
Answer:
999 – 333 = 666
Question 38.
33 – 33 =
Answer:
33 – 33 = 0
Question 39.
33 + 0 =
Answer:
33 + 0 = 33
Question 40.
30 + 3 =
Answer:
30 + 3 = 33
Question 41.
33 + 3 =
Answer:
33 + 3 = 36
Question 42.
36 + 3 =
Answer:
36 + 3 = 39
Question 43.
36 + 33 =
Answer:
36 + 33 = 69
Question 44.
36 + 63 =
Answer:
36 + 63 = 99.
Eureka Math Grade 2 Module 7 Lesson 16 Recording Sheet Answer Key
Center 1:
Measure and Compare Shin Lengths
Choose a measuring unit to measure the shins of everyone in your group. Measure from the top of the foot to the bottom of the knee.
Question 1.
I chose to measure using _______. Record the results in the table below. Include the units.
| Name | Length of Shin |
Answer:
| Name | Length of Shin |
| Sai | 1 foot – 12 inches |
| Harsha | 10 inches |
| Kelvin | 10.5 inches |
| Sowmya | 9 inches |
| Komal | 11 inches |
| Kunal | 11.5 inches |
Question 2:
What is the difference in length between the longest and shortest shins? Write a number sentence and statement to show the difference between the two lengths.
Answer:
Length of the longest shins = 12 inches
Length of the shortest shins = 9 inches
Difference between the longest and the shortest shins = 12 – 9 = 3 inches.
12 in – 9 in = 3 inches.
Difference is 3 inches.
Center 2:
Compare Lengths to a Yardstick
Fill in your estimate for each object using the words more than, less than, or about the same length as. Then, measure each object with a yardstick, and record the measurement on the chart.
Question 1.
The length of a book is ______ the yardstick.
Answer:
The length of a book is less than the yardstick.
Question 2.
The height of the door is ______ the yardstick.
Answer:
The height of the door is __more than____ the yardstick
Question 3.
The length of a student desk is ______ the yardstick.
Answer:
The length of a student desk is __same length as____ the yardstick.
| Object | Measurement |
| Length of book | less than yard 25 cm – 0.27 yards |
| Height of door | more than yard – 2 yards |
| Length of student desk | same length as yard – 1.2 yard |
Question 4:
What is the length of 4 student desks pushed together with no gaps in between? Use the RDW process to solve on the back of this paper.
Answer:
Center 3:
Choose the Units to Measure Objects.
Question 1.
Name 4 objects in the classroom. Circle which unit you would use to measure each item, and record the measurement in the chart.
| Object | Length of the Object |
| inches/feet/yards | |
| inches/feet/yards | |
| inches/feet/yards | |
| inches/feet/yards |
Answer:
Question 2.
Billy measures his pencil. He tells his teacher it is 7 feet long. Use the back of this paper to explain how you know that Billy is incorrect and how he can change his answer to be correct.
Answer:
Center 4:
Find Benchmarks.
Question 1.
Look around the room to find 2 or 3 objects for each benchmark length. Write each object in the chart, and record the exact length.
| Objects That Are About an Inch | Objects That Are About a Foot | Objects That Are About a Yard |
| 1. _____ inches | 1. _____ inches | 1. _____ inches |
| 2. _____ inches | 2. _____ inches | 2. _____ inches |
| 3. _____ inches | 3. _____ inches | 3. _____ inches |
Answer:
Center 5:
Choose a Tool to Measure
Question 1.
Circle the tool used to measure each object. Then, measure and record the length in the chart. Circle the unit.
| Object | Measurement Tool |
Measurement |
| Length of the rug | 12-inch ruler / yardstick | _______ inches/feet |
| Textbook | 12-inch ruler / yardstick | _______ inches/feet |
| Pencil | 12-inch ruler / yardstick | _______ inches/feet |
| Length of the chalkboard | 12-inch ruler / yardstick | _______ inches/feet |
| Pink eraser | 12-inch ruler / yardstick | _______ inches/feet |
Answer:
Question 2:
Sera’s jump rope is the length of 6 textbooks. On the back of this paper, make a tape diagram to show the length of Sera’s jump rope. Then, write a repeated addition sentence using the textbook measurement from the chart to find the length of Sera’s jump rope.
Answer:
Eureka Math Grade 2 Module 7 Lesson 16 Exit Ticket Answer Key
Question 1.
Circle the unit that would best measure each object.
| Marker | inch / foot / yard |
| Height of a car | inch / foot / yard |
| Birthday card | inch / foot / yard |
| Soccer field | inch / foot / yard |
| Length of a computer screen | inch / foot / yard |
| Height of a bunk bed | inch / foot / yard |
Answer:
Eureka Math Grade 2 Module 7 Lesson 16 Homework Answer Key
Question 1.
Circle the unit that would best measure each object.
| Height of a door | inch / foot / yard |
| Textbook | inch / foot / yard |
| Pencil | inch / foot / yard |
| Length of a car | inch / foot / yard |
| Length of your street | inch / foot / yard |
| Paint brush | inch / foot / yard |
Answer:
Question 2.
Circle the correct estimate for each object.
a. The height of a flagpole is more than / less than/about the same as the length of a yardstick.
Answer:
The height of a flagpole is more than the length of a yardstick.
b. The width of a door is more than / less than/about the same as the length of a yardstick.
Answer:
The width of a door is about the same as the length of a yardstick.
c. The length of a laptop computer is more than / less than/about the same as the length of a 12-inch ruler.
Answer:
The length of a laptop computer is about the same as the length of a 12-inch ruler.
d. The length of a cell phone is more than / less than/about the same as the length of a 12-inch ruler.
Answer:
The length of a cell phone is less than the length of a 12-inch ruler.
Question 3.
Name 3 objects in your classroom. Decide which unit you would use to measure that object. Record it in the chart in a full statement.
| Object | Unit |
| a. | I would use ______________ to measure the length of ________________________. |
| b. | |
| c. |
Answer:
Question 4.
Name 3 objects in your home. Decide which unit you would use to measure that object. Record it in the chart in a full statement.
| Object |
Unit |
| a. | I would use ______________ to measure the length of ________________________. |
| b. | |
| c. |
Answer:
