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.

20___9
13___11
42___
146___
1714___
64___
18___17
10___8
1611___
145___
___21
21___
___28
11___10
76___
141___
1714___
___14
15___11
9___5
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