U. Fact Families Quiz
Complete the number sentences for each fact family.
- 13 − 7 =
- 7 +
= 13
- 6 +
= 13
- 13 −
= 6
- 8 +
= 12
- 12 −
= 8
− 8 = 4
- 4 +
= 12
- 5 +
= 12
- 12 − 5 =
- 12 −
= 5
+ 5 = 12
− 8 = 7
- 7 + 8 =
- 8 +
= 15
- 15 −
= 8