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.

___11
139___
___12
18___12
17___4
6___4
42___
86___
___17
15___6
___17
15___5
12___9
___23
121___
72___
___145
86___
41___
10___3
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