1
Fact family for {1, 1, 2}: Write all 2 equations =
2
Fact family for {8, 1, 9}: Write all 4 equations =
3
Fact family for {10, 8, 18}: Write all 4 equations =
4
Fact family for {10, 2, 12}: Write all 4 equations =
5
Fact family for {8, 7, 15}: Write all 4 equations =
6
Fact family for {4, 3, 7}: Write all 4 equations =