Number Bonds Worksheet

Fill in the missing numbers to complete each number bond. The two parts at the bottom add up to the whole number at the top.

21___
___23
1513___
___11
21___
12___9
161___
3___1
12___9
18___16
___72
___146
13___7
___15
11___6
21___
1611___
11___5
3___2
13___2
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