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.

173___
1713___
7___6
19___18
31___
___614
___210
___22
___42
___105
20___4
___42
42___
85___
159___
___31
19___14
10___6
64___
19___18
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