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.

4___1
1512___
18___12
21___
20___1
42___
121___
32___
___316
41___
119___
___144
11___9
___710
___22
4___1
20___7
155___
19___18
___152
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