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.

21___
51___
___12
9___4
85___
21___
20___10
21___
___51
17___1
16___11
21___
64___
6___3
17___3
1311___
6___4
___23
___133
4___3
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