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.

___25
12___1
20___9
___812
18___4
___85
14___2
___103
13___12
6___2
185___
1711___
20___16
1812___
21___
31___
___181
___19
19___1
10___6
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