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