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.

17___12
___48
18___10
___217
___54
71___
41___
___12
108___
___72
10___2
4___2
2010___
31___
52___
___172
151___
129___
___21
3___1
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