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.

2011___
___415
7___3
21___
2010___
___12
5___1
4___2
13___8
9___4
1910___
63___
51___
___38
1917___
8___2
___66
8___2
21___
7___5
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