I can multiply any three-digit number by 1667 in my head, usually in less than 10 seconds.
Also, to make it even more impressive, I come up with the digits of the result in proper order (not in reverse!)
How can I do this?
nellie, i understood your comment to mean you have posted the solution
somewhere. if so, could you please post your solution as a comment so i
can find out what it is? (it has been a lo..o..ong time.) thanks.
-mohan.
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Posted by mohan
on 2003-10-16 01:17:00 |