# McGraw Hill Math Grade 2 Chapter 1 Lesson 3 Answer Key More Adding and Subtracting Through 20

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 1 Lesson 3 More Adding and Subtracting Through 20 will engage students and is a great way of informal assessment.

## McGraw-Hill Math Grade 2 Answer Key Chapter 1 Lesson 3 More Adding and Subtracting Through 20

Write the sum or difference.

Question 1.
13 + 7 = 20
20 – 13 = 7

Question 2.
9 + 9 = ___
18 – 9 = ___
9 + 9 = 18
18 – 9 = 9

Explanation:
I added to tell how many in all
9 + 9 = 18
I subtracted to tell how many are left
18 – 9 = 9.

Question 3.
11 + 3 = ___
14 – 11 = ___
11 + 3 = 14
14 – 11 = 3

Explanation:
I added to tell how many in all
11 + 3 = 14
I subtracted to tell how many are left
14 – 11 = 3.

Question 4.
14 + 2 = ___
16 – 14 = ___
14 + 2 = 16
16 – 14 = 2

Explanation:
I added to tell how many in all
14 + 2 = 16
I subtracted to tell how many are left
16 – 14 = 2.

Question 5.
3 + 6 = ___
9 – 6 = ___
3 + 6 = 9
9 – 6 = 3

Explanation:
I added to tell how many in all
3 + 6 = 9
I subtracted to tell how many are left
9 – 6 = 3.

Question 6.
5 + 5 = ___
10 – 5 = ___