Freaky number fun
30 10 2003 1 ) Key-in the first 3 digits of your moblie phone number into the calculator (not the area code)
2 ) Multiply by 80
3 ) Add 1
4 ) Multiply by 250
5 ) Plus last four digit of phone number
6 ) Plus last four digit of phone number again
7 ) Minus 250
8 ) Divide by 2
Is it your phone number? 
yeah.. 250 * 80 is 20000