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___
135___
32___
115___
7___6
18___17
81___
___124
___612
21___
2___1
43___
20___18
4___2
1514___
1513___
158___
74___
___56
19___16
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