Add and Subtract Within 20: Set 4

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Add and Subtract Within 20: Set 4

Find each sum, difference, and missing number.

Add

Write each sum.

1.

10 + 4 =

2.

3 + 1 =

3.

3 + 6 =

4.

1 + 10 =

5.

7 + 7 =

Subtract

Write each difference.

6.

16 − 4 =

7.

15 − 9 =

8.

12 − 8 =

9.

10 − 5 =

10.

15 − 10 =

Missing numbers

Write the missing number.

11.

10 − = 6

12.

7 − = 2

13.

8 − = 4

14.

5 + = 11

15.

3 − = 1