Facts Within 20: Set 8
0 / 16Facts Within 20: Set 8
Add and subtract from memory.
Add
Write each sum.
1.
3 + 7 =
2.
4 + 8 =
3.
7 + 6 =
4.
9 + 4 =
5.
6 + 2 =
6.
7 + 3 =
Subtract
Write each difference.
7.
12 − 9 =
8.
17 − 2 =
9.
12 − 2 =
10.
16 − 5 =
11.
18 − 8 =
12.
11 − 5 =
Missing numbers
Write the missing number.
13.
6 + = 10
14.
12 − = 4
15.
8 + = 18
16.
17 − = 9