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___
___42
6___2
71___
147___
148___
209___
19___10
21___
___21
149___
12___2
4___3
2___1
13___3
54___
___64
5___2
14___1
1511___
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