Facts Within 20: Set 9
0 / 16Facts Within 20: Set 9
Add and subtract from memory.
Add
Write each sum.
1.
3 + 9 =
2.
8 + 8 =
3.
4 + 10 =
4.
3 + 7 =
5.
8 + 7 =
6.
4 + 8 =
Subtract
Write each difference.
7.
17 − 4 =
8.
16 − 9 =
9.
19 − 5 =
10.
19 − 3 =
11.
11 − 9 =
12.
13 − 6 =
Missing numbers
Write the missing number.
13.
2 + = 11
14.
12 − = 10
15.
4 + = 11
16.
6 + = 16