1
Fact family for {1, 9, 10}: Write all 4 equations =
2
Fact family for {10, 9, 19}: Write all 4 equations =
3
Fact family for {8, 2, 10}: Write all 4 equations =
4
Fact family for {1, 10, 11}: Write all 4 equations =
5
Fact family for {8, 10, 18}: Write all 4 equations =
6
Fact family for {1, 2, 3}: Write all 4 equations =