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___
___515
52___
___61
6___5
6___2
18___6
5___3
4___2
139___
3___1
15___13
17___13
16___13
161___
2010___
21___
73___
2019___
83___
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