Math Trick Phone Number

1. Grab a calculator. (you won't be able to do
this one in yourhead)
2. Key in the first three digits of your phone number (NOT
the areacode)
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 ??????