McGraw Hill Math Grade 3 Chapter 2 Lesson 4 Answer Key Finding a Missing Addend

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McGraw-Hill Math Grade 3 Answer Key Chapter 2 Lesson 4 Finding a Missing Addend

Solve

Subtract. Write the difference. Then write the missing addend in the box.

Question 1.
14 + = 17

Question 2.
+ 3 = 5
Answer:
2 + 3 = 5

Explanation:
The difference of 5 and 3 is 2
So, the missing number is 2.

Question 3.
13 + = 18

Answer:
13 + 5 = 18

Explanation:
The difference of 18 and 13 is 5
So, the missing number is 5.

Question 4.
7 + = 8

Answer:
7 + 1 = 8

Explanation:
The difference of 8 and 7 is 1
So, the missing number is 1.

Question 5.
10 + = 14

Answer:
10 + 4 = 14

Explanation:
The difference of 14 and 10 is 4
So, the missing number is 4.

Question 6.
+ 3 = 9

Answer:
6 + 3 = 9

Explanation:
The difference of 9 and 3 is 6
So, the missing number is 6.

Question 7.
Read the problem. Write the addition sentence you would use to help find the missing addend.
Uma and John planted 8 seeds. Uma planted 3 of the seeds. How many seeds did John plant?
Answer:

3 + 5 = 8

Explanation:
Uma and John planted 8 seeds
Uma planted 3 of the seeds
The difference of 8 and 3 is 5
So, John planted 5 seeds.