1
Fact family for {7, 8, 15}: Write all 4 equations =
2
Fact family for {1, 5, 6}: Write all 4 equations =
3
Fact family for {4, 9, 13}: Write all 4 equations =
4
Fact family for {2, 7, 9}: Write all 4 equations =
5
Fact family for {1, 8, 9}: Write all 4 equations =
6
Fact family for {8, 1, 9}: Write all 4 equations =