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___
___415
5___2
___21
8___4
42___
___144
1512___
63___
19___2
17___16
14___13
176___
2___1
15___11
1610___
18___3
17___13
5___4
16___9
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