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?

(In reply to gamer's reply by nellie)

You can post it here. The people who have reached the rank of Journeymen (see the <a href=\"http://perplexus.info/faq.php\"FAQ
The problem is once the solution is out, it's not easy to make changes to it. I added the links to the solution (see the solution), so if you like them there just say so. :)

Posted by Gamer on 2003-10-15 19:51:52