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
6___5
1311___
12___4
20___8
18___7
126___
4___3
8___3
18___1
123___
15___4
126___
155___
___59
104___
___510
11___1
13___6
10___9
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