#The last step; with this number, subtract your birth year.
#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/index.php:File:Phone_number_birthday_puzzle.ods spreadsheet] to solve this and find out why it works!!
+
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!!