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
___12
21___
6___3
1612___
102___
1513___
43___
20___8
113___
5___2
115___
41___
18___12
172___
2___1
182___
14___13
63___
21___
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