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.

___23
4___2
1511___
53___
19___3
20___9
123___
16___15
2016___
74___
5___1
11___8
12___7
20___1
21___
___145
1210___
31___
20___15
10___1
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