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.

1816___
12___1
64___
43___
107___
17___9
___11
9___4
___57
21___
13___8
___11
20___11
___21
61___
6___3
43___
1910___
72___
163___
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