1
Fact family for {3, 10, 13}: Write all 4 equations =
2
Fact family for {8, 7, 15}: Write all 4 equations =
3
Fact family for {2, 2, 4}: Write all 2 equations =
4
Fact family for {10, 2, 12}: Write all 4 equations =
5
Fact family for {2, 5, 7}: Write all 4 equations =
6
Fact family for {10, 10, 20}: Write all 2 equations =