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.

1310___
3___2
206___
7___5
42___
157___
17___13
___78
17___14
20___15
___35
___81
31___
31___
12___8
21___
20___5
133___
13___11
145___
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