1
Fact family for {20, 14, 34}: Write all 4 equations =
2
Fact family for {19, 24, 43}: Write all 4 equations =
3
Fact family for {19, 19, 38}: Write all 2 equations =
4
Fact family for {44, 45, 89}: Write all 4 equations =
5
Fact family for {28, 45, 73}: Write all 4 equations =
6
Fact family for {36, 42, 78}: Write all 4 equations =