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.

6___1
4___2
15___13
___42
144___
31___
9___5
10___9
___128
19___16
1714___
___411
___49
11___6
185___
161___
166___
___36
20___2
___111
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