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.

51___
___155
41___
5___2
10___8
___411
8___4
10___2
___11
___23
1918___
3___1
71___
4___2
2___1
13___4
91___
11___3
31___
12___4
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