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___1
18___14
18___15
5___1
13___7
12___6
10___8
17___9
___44
21___
___45
___18
4___3
15___8
72___
85___
11___8
138___
20___11
119___
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