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.

___78
11___9
17___15
4___1
___107
21___
135___
16___1
73___
206___
___27
7___3
52___
15___12
31___
___154
64___
123___
19___7
18___7
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