Facts Within 20: Set 1
0 / 16Add and subtract from memory.
Write each sum.
7 + 2 =
6 + 10 =
10 + 4 =
7 + 8 =
5 + 10 =
6 + 6 =
Write each difference.
12 − 5 =
13 − 3 =
15 − 2 =
14 − 8 =
11 − 5 =
16 − 8 =
Write the missing number.
3 + = 10
18 − = 15
15 − = 7
13 − = 5