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
12___4
21___
___62
2013___
31___
___25
10___2
1514___
123___
9___6
1510___
1714___
9___6
___11
106___
146___
64___
20___18
21___
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