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
74___
21___
___13
15___11
12___1
3___1
20___17
20___10
21___
13___9
20___17
1514___
1913___
209___
54___
1915___
15___14
42___
54___
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