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March 31, 2015

March 31, 2015

Posted by **Lesly** on Saturday, January 8, 2011 at 6:34pm.

- math -
**MathMate**, Saturday, January 8, 2011 at 8:47pmFrom 0 to 99, there are 2*10=20 2's.

from 100 to 199, there are 20 2's.

...

from 600 to 699, there are 20 2's.

From 700 to 759, there are 20-4 2's.

How many 2's are there in all?

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