1
Fact family for {7, 8, 15}: Write all 4 equations =
2
Fact family for {10, 9, 19}: Write all 4 equations =
3
Fact family for {6, 5, 11}: Write all 4 equations =
4
Fact family for {5, 3, 8}: Write all 4 equations =
5
Fact family for {7, 6, 13}: Write all 4 equations =
6
Fact family for {1, 10, 11}: Write all 4 equations =