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Answer Key
Grade 1 Math: Properties & Relationship of Ops
1.
5 + 3
2.
2 + 8
3.
10 − 4 = 6 or 10 − 6 = 4
4.
10 − 3 = 7 or 10 − 7 = 3
5.
9 + 5 = 14 (or 14 − 5 = 9 / 14 − 9 = 5)
6.
10
7.
9
8.
2
9.
9 + 1
10.
8
11.
11
12.
14
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