Add and Subtract Within 20: Set 10
0 / 15Add and Subtract Within 20: Set 10
Find each sum, difference, and missing number.

Add
Write each sum.
1.
6 + 10 =
2.
7 + 9 =
3.
5 + 5 =
4.
3 + 1 =
5.
1 + 10 =
Subtract
Write each difference.
6.
19 − 2 =
7.
9 − 4 =
8.
10 − 9 =
9.
7 − 5 =
10.
9 − 6 =
Missing numbers
Write the missing number.
11.
11 − = 8
12.
4 + = 10
13.
6 + = 7
14.
3 + = 5
15.
2 + = 10