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.

15___9
___64
21___
12___7
129___
32___
___71
98___
73___
___21
1913___
3___2
82___
___21
___217
53___
3___1
20___1
___41
5___4
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