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.

___210
10___8
5___3
15___12
___23
32___
12___11
143___
16___15
139___
___21
43___
21___
1615___
___119
9___3
___11
85___
117___
4___2
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