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.

___510
___31
___21
17___12
7___4
20___9
2___1
19___11
18___12
107___
13___6
181___
___210
17___1
___153
21___
158___
32___
143___
___29
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