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___
15___11
2___1
19___15
144___
71___
105___
13___7
17___5
___511
6___1
5___4
52___
18___6
___99
___14
8___1
18___4
1916___
17___13
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