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.

73___
18___8
3___2
21___
9___4
5___4
42___
___113
___117
153___
20___4
___73
10___9
7___1
85___
171___
1510___
1815___
14___12
9___3
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