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.

___315
10___9
42___
___112
18___5
21___
143___
___31
173___
9___6
8___7
17___9
5___1
2___1
10___6
53___
15___11
8___4
___106
___21
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