1
Fact family for {20, 41, 61}: Write all 4 equations =
2
Fact family for {19, 47, 66}: Write all 4 equations =
3
Fact family for {41, 28, 69}: Write all 4 equations =
4
Fact family for {25, 22, 47}: Write all 4 equations =
5
Fact family for {50, 24, 74}: Write all 4 equations =
6
Fact family for {6, 48, 54}: Write all 4 equations =