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.

9___2
7___4
21___
18___6
___66
207___
21___
85___
52___
___153
4___3
87___
___112
5___1
10___2
9___2
18___15
149___
20___7
___77
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