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
13___10
15___7
4___3
18___17
12___9
___38
17___13
41___
9___1
1512___
31___
4___2
10___5
9___3
158___
___43
10___3
31___
20___17
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