Common Core: 1.OA — Operations & Algebraic Thinking
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Name
Date
Score
/ 10
Number Bonds 11-15 (Set D)
Directions: Find the missing number in each bond.
1.
11 + ? = 13
2.
9 + ? = 13
3.
? + 7 = 14
4.
5 + 9 = ?
5.
3 + 12 = ?
6.
1 + ? = 15
7.
? + 1 = 5
8.
? + 2 = 5
9.
3 + 2 = ?
10.
2 + 4 = ?
Great work — check your answers when you finish.
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