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.

4___2
___810
___411
___710
___21
105___
___12
31___
___11
13___9
9___1
21___
___28
13___4
42___
8___4
17___7
14___13
2___1
2___1
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