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.

___12
13___8
31___
3___2
14___13
16___1
21___
173___
16___5
4___3
21___
___11
207___
___21
2___1
___112
___911
1711___
18___15
20___6
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