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.

6___1
21___
43___
2012___
___812
75___
51___
13___12
51___
___62
138___
4___2
13___10
___18
10___6
9___1
1614___
___21
7___4
8___6
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