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
21___
21___
___44
21___
21___
4___2
18___15
2___1
___85
87___
14___5
___77
___122
1110___
111___
72___
10___2
206___
21___
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