1
Fact family for {3, 10, 13}: Write all 4 equations =
2
Fact family for {10, 46, 56}: Write all 4 equations =
3
Fact family for {21, 4, 25}: Write all 4 equations =
4
Fact family for {28, 49, 77}: Write all 4 equations =
5
Fact family for {7, 16, 23}: Write all 4 equations =
6
Fact family for {50, 41, 91}: Write all 4 equations =