fact-family/add-sub-within-20-write-all · Sada 1

6 problems
1
Fact family for {5, 3, 8}: Write all 4 equations =
2
Fact family for {16, 9, 25}: Write all 4 equations =
3
Fact family for {2, 4, 6}: Write all 4 equations =
4
Fact family for {8, 11, 19}: Write all 4 equations =
5
Fact family for {4, 14, 18}: Write all 4 equations =
6
Fact family for {4, 11, 15}: Write all 4 equations =
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