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.

4___1
___113
63___
10___2
___142
8___5
182___
19___17
13___9
___21
___910
21___
81___
___11
109___
___143
17___9
10___3
10___8
13___11
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