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.

145___
105___
20___13
___44
2___1
14___12
5___3
13___12
159___
16___5
109___
17___12
17___10
16___3
6___5
21___
17___8
1311___
1913___
1715___
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