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___18
175___
18___11
16___14
___66
7___2
___171
___107
21___
4___1
12___1
7___6
___12
31___
1412___
1915___
1311___
9___1
___171
2013___
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