1
Fact family for {5, 5, 10}: Write all 2 equations =
2
Fact family for {18, 13, 31}: Write all 4 equations =
3
Fact family for {17, 16, 33}: Write all 4 equations =
4
Fact family for {3, 20, 23}: Write all 4 equations =
5
Fact family for {2, 9, 11}: Write all 4 equations =
6
Fact family for {13, 1, 14}: Write all 4 equations =