# mathematical operations

• Dec 18th 2009, 08:51 AM
hebby
mathematical operations
how it is possible to remove a three-digit number using two mathematical operations
• Dec 18th 2009, 10:06 AM
Raoh
Quote:

Originally Posted by hebby
how it is possible to remove a three-digit number using two mathematical operations

what do you mean by remove,is it some kind of magic puzzle(Rofl) ?
• Dec 18th 2009, 10:34 AM
Wilmer
Easier if you use an eraser (Itwasntme)
• Dec 18th 2009, 12:17 PM
hebby
well lets say u have a number 208323404.......and i want to get 208323.....what two mathematical operation would I use to remove the last 3 numbers.
• Dec 18th 2009, 12:22 PM
Dinkydoe
How about subtracting 404 and divide by 100?

In general: subtract last 3-digitnumber and divide by 100
• Dec 18th 2009, 01:12 PM
Wilmer
Quote:

Originally Posted by Dinkydoe
How about subtracting 404 and divide by 100?
In general: subtract last 3-digitnumber and divide by 100

...and divide by 1000, not 100
• Dec 18th 2009, 01:19 PM
Dinkydoe
yes, that was plain stupid, 1000 ofcourse