Common Core: 1.OA — Operations & Algebraic Thinking
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Name
Date
Score
/ 8
Fact Families (Set B)
Directions: Find the missing number in each bond.
1.
? + 5 = 9
2.
4 + ? = 9
3.
4 + 5 = ?
4.
5 + ? = 9
5.
? + 4 = 10
6.
6 + ? = 10
7.
6 + 4 = ?
8.
4 + ? = 10
Great work — check your answers when you finish.
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