I. Fact Families: Groups 5 and 6
Solve each group of related facts.
- 11 − 2 =
- 2 +
= 11
- 11 −
= 2
- 9 + 2 =
- 8 −
= 5
- 5 +
= 8
− 5 = 3
+ 3 = 8
− 6 = 2
- 2 +
= 8
- 8 −
= 6
- 6 + 2 =
= 13 − 8
- 5 +
= 13
- 13 − 5 =
+ 8 = 13
- 7 − 5 =
- 5 +
= 7
− 2 = 5
- 2 + 5 =
- 12 − 4 =
- 4 +
= 12
− 8 = 4
- 8 +
= 12