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.

5___3
9___7
18___15
16___9
19___9
8___5
1210___
___77
16___11
206___
21___
17___15
9___7
4___3
14___4
___812
2010___
20___6
64___
18___15
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