tracy
金牌會員
積分 3113
發帖 113
注冊 2005-9-2
狀態 离線
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#1 Math Trick
Very interesting...
1. Grab a calculator. (You won't be able to do this one in your head)
2. Key in the first three digits of your phone number (NOT the area code)
3. Multiply by 80
4. Add 1
5. Multiply by 250
6. Add the last 4 digits of your phone number
7. Add the last 4 digits of your phone number again
8. Subtract 250
9. Divide number by 2
Do you recognize the answer?
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