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
2___1
15___12
42___
207___
___55
129___
16___1
205___
___43
___24
8___5
41___
208___
20___15
41___
3___2
6___5
___13
21___
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