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___10
21___
___42
1917___
2___1
___16
187___
1812___
___21
72___
74___
1910___
1615___
___124
12___10
42___
19___8
19___11
81___
71___
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