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.

21___
4___2
9___2
___24
___910
1915___
21___
1914___
7___1
11___6
17___7
42___
5___2
1817___
21___
14___11
72___
21___
144___
12___1
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