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.

51___
10___6
___53
1210___
16___8
6___4
___13
135___
___12
31___
___217
7___1
20___12
42___
114___
15___14
___112
9___7
___82
21___
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