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
8___4
131___
141___
13___12
18___6
___74
1513___
___21
18___17
___132
2___1
9___2
___21
___11
21___
91___
86___
171___
___11
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