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.

6___5
4___1
___28
___210
6___5
___21
128___
___22
___62
103___
199___
15___7
1615___
20___12
___39
144___
159___
18___10
1211___
13___12
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