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.

12___11
61___
2___1
7___2
149___
9___1
51___
12___4
1915___
31___
___210
18___14
16___15
154___
20___19
8___6
___25
63___
17___4
21___
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