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.

___42
2013___
1615___
___12
1812___
___17
11___1
16___5
15___10
14___3
7___2
21___
19___10
5___2
169___
81___
___111
___111
15___12
21___
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