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.

13___4
13___2
___21
156___
32___
4___3
143___
8___7
7___5
9___4
21___
___116
10___4
1912___
108___
8___4
___71
1412___
___313
81___
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