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
___31
21___
181___
20___19
5___2
17___4
71___
43___
17___10
71___
7___3
123___
10___1
82___
___413
86___
13___3
___33
91___
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