1
Fact family for {18, 12, 30}: Write all 4 equations =
2
Fact family for {18, 13, 31}: Write all 4 equations =
3
Fact family for {16, 7, 23}: Write all 4 equations =
4
Fact family for {5, 14, 19}: Write all 4 equations =
5
Fact family for {12, 8, 20}: Write all 4 equations =
6
Fact family for {5, 16, 21}: Write all 4 equations =