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.

10___5
___21
129___
20___9
11___10
___119
202___
___23
20___18
___155
___21
16___3
21___
4___3
18___3
51___
13___3
107___
16___12
2011___
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