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.

___57
21___
179___
___67
17___1
72___
___44
3___1
___29
93___
___13
71___
12___7
3___1
4___2
6___3
42___
6___5
21___
123___
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