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.

43___
19___12
13___5
143___
20___18
1514___
3___1
18___5
___111
10___9
4___2
21___
172___
___116
129___
11___5
142___
___21
___34
8___1
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