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.

129___
16___12
21___
2013___
87___
19___9
15___14
2___1
14___8
11___10
4___2
21___
17___8
8___6
63___
2___1
6___1
6___2
139___
___15
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