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.

18___12
42___
___34
6___5
51___
13___12
8___3
___31
61___
___17
___512
___21
___104
18___1
1815___
2___1
9___6
13___5
12___8
13___2
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