Tuesday, February 06, 2007

Phone math

Grab a calculator.  you probably won’t be able to do this in your head.

Key in the first 3 digits of your phone number  (not the area code)

Multiply by 80

Add 1

Multiply by 250

Add the last 4 digits of your phone number.

Add the last 4 digits of your phone number again (just for good measure)

Subtract 250

Divide your answer by 2.

Do you recognize the answer?

If you did the correct math the answer should be your phone number.

Thanks Joe P

1 comment:

Anonymous said...

((((x * 80) + 1) * 250) + 2y -250) / 2 =

(20000x + 250 + 2y -250) / 2 =

10000x + y

x = 555
y = 1111
therefore (10000 * 555) + 1111 = 5551111

Algebraic word problem becomes magic to many