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.

___21
21___
124___
8___5
63___
___11
___55
18___12
11___5
8___6
10___2
7___6
21___
154___
4___1
___81
___72
149___
1812___
___42
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