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.

2___1
13___3
4___2
21___
12___2
___27
9___7
153___
21___
1815___
4___1
126___
139___
6___5
13___3
___39
43___
4___3
1513___
12___8
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