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.

109___
21___
42___
146___
13___2
___45
___27
___65
188___
1513___
63___
158___
___43
___13
204___
___23
___75
1711___
6___3
20___12
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