Amazing Number game

Write down a Number between 1 to 99. Check your number against the numbers listed in my Amazing Number cards. I will be able to guess your Number.

http://www.tankinlian.com/amazing/index.html

Show it to your children and friends. Ask them the same question, "how is this done?"

Can you guess how I guess your Number? Send your reply to me at kinlian@gmail.com. Do not post your answer and give away your secret.