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___
___11
1917___
1611___
4___1
___12
15___12
148___
18___5
105___
42___
10___9
___163
91___
1510___
___28
3___2
___61
___155
21___
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