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.

129___
2___1
109___
___52
14___7
___23
173___
31___
121___
177___
___137
2___1
61___
42___
1310___
105___
2___1
2010___
7___2
165___
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