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.

3___1
19___6
14___10
21___
135___
31___
3___1
159___
20___15
103___
18___14
13___3
2___1
6___4
2013___
___910
86___
___52
___42
82___
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