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.

13___9
4___1
1613___
173___
4___1
___910
136___
61___
___22
15___6
2011___
13___4
116___
___21
21___
16___8
12___5
___13
21___
63___
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