February 25, 2017

Homework Help: math

Posted by Jane on Tuesday, May 12, 2009 at 2:59pm.

Is there a formula to sum the digits between two numbers?
eg. 1 to 20 = 1+2+3+4+5+6+7+8+9+1+0+1+1+1+2+1+3+1+4+1+5+1+6+1+7+1+8+1+9+2+0 = ??

I am looking for the numbers 1 to 2008 so I really need a formula!

Please help, thank you.

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