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.

10___9
4___3
___21
12___1
41___
15___3
___15
1713___
64___
7___3
18___15
17___7
10___9
6___3
31___
1211___
3___2
___43
10___6
135___
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