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.

17___15
204___
42___
2011___
9___1
1813___
12___6
21___
___512
6___2
___14
___64
___88
105___
86___
4___1
5___4
___51
159___
145___
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