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.

4___3
9___5
2___1
18___9
151___
16___15
7___6
9___8
127___
12___3
20___1
21___
5___4
145___
2___1
8___4
111___
21___
18___17
1311___
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