Common Core: 2.OA — Operations & Algebraic Thinking
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Name
Date
Score
/ 10
Number Bonds to 20 - Set 3
Directions: Complete each number bond. Parts add up to the whole.
1.
? + 9 = 12
2.
? + 12 = 13
3.
12 + 2 = ?
4.
10 + ? = 14
5.
9 + ? = 15
6.
? + 9 = 15
7.
? + 12 = 16
8.
2 + 15 = ?
9.
15 + ? = 17
10.
13 + ? = 18
Great work — check your answers when you finish.
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