Common Core: 2.OA — Operations & Algebraic Thinking
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Name
Date
Score
/ 10
Number Bonds to 50 - Set 2
Directions: Complete each number bond. Parts add up to the whole.
1.
9 + ? = 20
2.
10 + ? = 20
3.
? + 9 = 20
4.
? + 8 = 20
5.
12 + 8 = ?
6.
13 + ? = 20
7.
14 + ? = 20
8.
15 + ? = 20
9.
? + 5 = 20
10.
? + 4 = 20
Great work — check your answers when you finish.
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