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.

20___18
2___1
1211___
___21
3___1
20___7
1512___
19___6
1412___
13___8
___137
73___
15___13
8___1
205___
2___1
18___1
144___
4___1
13___6
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