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
___81
42___
___72
12___7
1312___
16___3
18___6
10___2
129___
31___
103___
17___12
139___
___81
1611___
109___
43___
173___
53___
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