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.

12___5
131___
___21
1815___
32___
14___12
___131
___121
4___2
2___1
32___
71___
4___1
15___5
18___12
___22
31___
13___7
2___1
12___3
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