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
123___
18___11
___28
54___
136___
5___3
7___5
87___
4___2
13___12
151___
17___4
16___9
6___3
113___
42___
163___
___67
4___3
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