Go through the Spectrum Math Grade 2 Answer Key Chapter 2 Pretest and get the proper assistance needed during your homework.
Spectrum Math Grade 2 Chapter 2 Pretest Answers Key
Add.
Answer:
The answer is 16.
Explanation:
Let us add 7 and 9.
Add 7 ones and 9 ones.
7 ones + 9 ones = 16 ones.
16 ones = 1 ten + 6 ones
Write 6 in one’s place and carry 1 ten to ten’s place.
Answer:
The answer is 5.
Explanation:
Let us add 2 and 3.
Add 2 ones and 3 ones.
2 ones + 3 ones = 5 ones. The answer is 5.
Answer:
The answer is 2.
Explanation:
Let us add 0 and 2.
Add 0 ones and 2 ones.
0 ones + 2 ones = 2 ones.
The answer is 2.
Answer:
11
Explanation:
Let us add 3 and 8.
Add 3 ones and 8 ones.
3 ones + 8 ones = 11 ones.
11 ones = 1 ten + 1 ones
Write 1 in one’s place and carry 1 ten to ten’s place.
Answer:
The answer is 7.
Explanation:
Let us add 5 and 2.
Add 5 ones and 2 ones.
5 ones + 2 ones = 7 ones.
The answer is 7.
Answer:
15
Explanation:
Let us add 7 and 8.
Add 7 ones and 8 ones.
7 ones + 8 ones = 15 ones.
15 ones = 1 ten + 5 ones
Write 5 in one’s place and carry 1 ten to ten’s place.
Answer:
8
Explanation:
Let us add 4 and 4.
Add 4 ones and 4 ones.
4 ones + 4 ones = 8 ones.
The answer is 8.
Answer:
The answer is 19.
Explanation:
Let us add 18 and 1.
Add 8 ones and 1 ones.
8 ones + 1 ones = 9 ones.
1 ten + 1 carry = 2 ten’s
Write 9 in one’s place and carry 1 ten to ten’s place.
Answer:
The answer is 12.
Explanation:
Let us add 8 and 4.
Add 8 ones and 4 ones.
8 ones + 4 ones = 12 ones.
12 ones = 1 ten + 2 ones
Write 2 in one’s place and carry 1 ten to ten’s place.
Answer:
The answer is 4.
Explanation:
Let us add 3 and 1.
Add 3 ones and 1 one’s.
3 ones + 1 ones = 4 ones.
The answer is 4.
Answer:
9
Explanation:
Let us add 2 and 7.
Add 2 ones and 7 ones.
2 ones + 7 ones = 9 ones.
The answer is 9.
Answer:
The answer is 17.
Explanation:
Let us add 9 and 8.
Add 9 ones and 8 ones.
9 ones + 8 ones = 17 ones.
17 ones = 1 ten + 7 ones
Write 7 in one’s place and carry 7 ten to ten’s place.
Answer:
3
Explanation:
Let us add 2 and 1.
Add 2 ones and 1 one’s.
2 ones + 1 ones = 3 ones.
13 ones = 1 ten + 3 ones
Write 3 in one’s place. The answer is 3.
Answer:
The answer is 6.
Explanation:
Let us add 6 and 0.
Add 6 + 0 = 6.
Answer:
The answer is 13.
Explanation:
Let us add 7 and 6.
Add 7 ones and 6 ones.
7 ones + 6 ones = 13 ones.
13 ones = 1 ten + 3 ones
Write 3 in one’s place and carry 1 ten to ten’s place.
Answer:
The answer is 14.
Explanation:
Let us add 5 and 9.
Add 5 ones and 9 ones.
5 ones + 9 ones = 14 ones.
14 ones = 1 ten + 4 ones
Write 4 in one’s place and carry 1 ten to ten’s place.
Answer:
The answer is 20.
Explanation:
Let us add 17 and 3.
Add 7 ones and 3 ones.
7 ones + 3 ones = 10 ones.
1 ten + 1 carry = 2 tens
Write 0 in one’s place and carry 1 ten to ten’s place. The answer is 20.
Answer:
10
Explanation:
Let us add 6 and 4.
Add 6 ones and 4 ones.
6 ones + 4 ones = 10 ones.
10 ones = 1 ten + 0 ones
Write 0 in one’s place and carry 1 ten to ten’s place.
Subtract.
Answer:
The subtraction of the given two numbers is 1.
Explanation:
Subtraction means taking one number away from another number.
Let us subtract 4 from 5. The answer is 1.
Answer:
The subtraction of the given two numbers is 7.
Explanation:
Let us subtract 7 from 14.
Now take one number away from another number. 14 – 7 = 7
Answer:
The subtraction of the given two numbers is 2.
Explanation:
Let us subtract 4 from 6.
Now take one number away from another number. 6 – 4 = 2.
Answer:
The subtraction of the given two numbers is 5.
Explanation:
Let us subtract 5 from 10.
Now take one number away from another number. 10 – 5 = 5.
Answer:
The subtraction of the given two numbers is 8.
Explanation:
Let us subtract 5 from 13.
Now take one number away from another number. 13 – 8 = 5.
Answer:
The subtraction of the given two numbers is 9.
Explanation:
Let us subtract 9 from 18.
Now take one number away from another number. 18 – 9 = 9.
Answer:
The subtraction of the given two numbers is 7.
Explanation:
Let us subtract 4 from 11.
Now take one number away from another number. 11 – 4 = 7.
Answer:
The subtraction of the given two numbers is 12.
Explanation:
Let us subtract 7 from 19.
Now take one number away from another number. 19 – 7 = 12.
Answer:
The subtraction of the given two numbers is 3.
Explanation:
Let us subtract 6 from 9.
Now take one number away from another number. 9 – 6 = 3.
Answer:
The subtraction of the given two numbers is 0.
Explanation:
Let us subtract 4 from 4.
Now take one number away from another number. 4 – 4 = 0.
Answer:
The subtraction of the given two numbers is 8.
Explanation:
Let us subtract 8 from 16.
Now take one number away from another number. 16 – 8 = 8.
Answer:
The subtraction of the given two numbers is 6.
Explanation:
Let us subtract 15 from 9.
Now take one number away from another number. 15 – 9 = 6.
Answer:
The subtraction of the given two numbers is 9.
Explanation:
Let us subtract 8 from 17.
Now take one number away from another number. 17 – 8 = 9.
Answer:
The subtraction of the given two numbers is 3.
Explanation:
Let us subtract 5 from 8.
Now take one number away from another number. 8 – 5 = 3.
Answer:
The subtraction of the given two numbers is 3.
Explanation:
Let us subtract 0 from 3.
Now take one number away from another number. 3 – 0 = 3.
Answer:
The subtraction of the given two numbers is 17.
Explanation:
Let us subtract 3 from 20.
Now take one number away from another number. 20 – 3 = 17.
Answer:
The subtraction of the given numbers is 8.
Explanation:
Let us subtract 4 from 12.
Now take one number away from another number. 12 – 4 = 8.
Answer:
The answer is 5.
Explanation:
Let us subtract 2 from 7.
Now take one number away from another number. 7 – 2 = 5.
Solve each problem.
Brian borrows 6 books from the library.
Jamal borrows 8 books.
How many books do they borrow in all? _____
Answer:
The total number of books they borrowed is 6 + 8 = 14 books.
Explanation:
Given,
No of the books Brian borrowed from the library = 6
No of books Jamal borrowed = 8
The total number of books they borrowed is 6 + 8 = 14 books.
There are 17 slices of pizza.
8 of them get eaten.
How many slices are left? ____
Answer:
There are 9 slices left.
Explanation:
Given,
No of pizza slices = 17
No of slices got eaten = 8
No of slices left = 17 – 8 = 9 slices.
20 students are in the library.
6 students leave.
How many students are still in the library? _______
Answer:
There are 14 students still in the library.
Explanation:
Given,
The number of students in the library.
The number of students left the library.
The total number of students still in the library is 20 – 6 = 14 students.
Sue borrows 6 books. 
If Nina borrows 2 more books than Sue, how many books does Nina borrow? _____
Answer:
There are 8 books Nina borrowed in total.
Explanation:
Given,
Sue borrowed 6 books.
Nina borrowed 2 more books than sue>
The total number of books Nina borrowed is 6 + 2 = 8 books.
There are 8 desks on the first floor.
There are 7 desks on the second floor.
How many desks are there on the two floors? ____
Answer:
There are a total of 15 desks on the two floors.
Explanation:
Given,
No of desks on the first floor is 8
No of desks on the second floor is 7.
We need to find out how many desks are there on the two floors.
So let’s add both the floor’s desk
8 + 7 = 15
Therefore there are a total of 15 desks on the two floors.