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___10
19___17
3___1
107___
17___1
21___
42___
___613
6___4
1612___
___110
142___
20___17
5___4
53___
4___1
21___
19___8
1615___
___161
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