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.

123___
10___1
42___
1411___
18___15
___16
4___1
3___1
51___
121___
15___11
___73
3___2
21___
16___13
9___8
144___
___21
4___3
115___
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