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
11___9
20___1
41___
131___
72___
4___3
___1010
1412___
20___11
131___
10___7
75___
1815___
9___1
19___2
___11
___164
107___
___21
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