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CELL PHONE MATH NUMBER TRICK

Do you know someone who has a cell phone? duh! yeah! Well here's a cool cell phone math number trick!


  • Grab a calculator (you won’t be able to do this one in your head)
  • Key in the first three 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
  • Subtract 250
  • Divide by 2

Recognize the number you end up with? It should be the phone number with all the digits.


Math number tricks are good for practicing addition, subtraction, multiplication, and division. Want to see more Math Number Tricks?

Students have fun doing the math number tricks, but at the same time they are getting better at doing the math. Make sure they don't use a calculator...sort of defeats the purpose.

Most of us have a pack of cards laying around the house somewhere. Check some cool Math Card Tricks here. Otherwise click the link below to go to the main math tricks page.


Go to main Math Tricks page

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