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
175___
19___3
10___6
___143
___210
7___6
5___1
6___3
15___13
21___
___161
156___
32___
16___10
121___
___23
2011___
___62
___52
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