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=[http://karnatakaeducation.org.in/KOER/en/index.php/Portal:Mathematics/Fun_corner#Phone_number_birthday_puzzle Phone number birthday puzzle]=
{|class="wikitable"
|-
|[[File:phone-number-keypad.jpg|150px]]
| '''YOUR PHONE NUMBER WILL REVEAL YOUR AGE'''
|}
Your Phone number will reveal your actual Age. It will take about 15 seconds,read and do it at the same time so that you will not lose the fun.
#Take a look at your last digit of your cell phone number
#Use this figure and multiply by 2
#Then add 5
#And then multiply by 50
#And then add the number 1765
#The last step; with this number, subtract your birth year.
Now you see a three-digit number. The first digit is the last digit of your phone number, the next two digits are your actual age! You can use the attached [http://karnatakaeducation.org.in/KOER/en/images/1/17/Phone_number_birthday_puzzle.ods spreadsheet] to solve this and find out why it works!!
=Maths Quizzes=
=Maths Quizzes=
