Question

Reveal the magic trick of finding other birthdate and month by simple math trick

Answer 1

• Enter the number 7
• Multiply by the month of your birth
• Subtract 1
• Multiply by 13
• Add the day of your birth
• Add 3
• Multiply by 11
• Subtract the month of your birth
• Subtract the day of your birth
• Divide by 10
• Add 11
• Divide by 100
• let's suppose your friend was born on February 29. Below, I repeat the sequence of instructions, showing the result at each step in red.
  Enter the number 7 (7)
  Multiply by the month of your birth (7x2=14)
  Subtract 1 (14-1=13)
  Multiply by 13 (13x13=169)
  Add the day of your birth (169+29=198)
  Add 3 (198+3=201)
  Multiply by 11 (201x11=2211)
  Subtract the month of your birth (2211-2=2209)
  Subtract the day of your birth (2209-29=2180)
  Divide by 10 (2180/10=218)
  Add 11 (218+11=229)
  Divide by 100 (229/100 = 2.29)