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
16___12
16___11
___73
6___2
20___18
2___1
15___9
143___
___12
2___1
19___18
___173
13___4
20___6
83___
125___
31___
187___
17___16
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