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.

___513
133___
108___
72___
42___
63___
2___1
17___10
7___2
20___14
31___
1513___
168___
___311
21___
142___
15___9
___32
___511
11___1
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