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.

___21
15___7
5___2
9___1
13___8
8___4
153___
42___
53___
143___
73___
16___1
8___1
20___17
1611___
11___6
___99
117___
93___
___53
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