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.

20___13
1918___
___66
21___
1510___
17___14
7___3
16___5
17___8
7___5
14___4
5___2
139___
151___
1710___
43___
13___5
6___3
___12
___78
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