- Ask someone to think of their birth month but not reveal it to you.
- Instruct them to perform the following calculations mentally:
- Multiply their birth month by 5.
- Add 6 to the result.
- Multiply the result by 4.
- Add 9 to the result.
- Multiply the result by 5 again.
- Ask them to tell you the final result.
- Perform your magic calculations:
- Subtract 165 from the final result.
- Ask them to tell you the new result.
- Reveal the magic:
- The two digits of the result represent their birth month!
- Let’s say the person’s final result is 225. If they subtract 165, the new result is 60. The digits 6 and 0 represent June, which is their birth month.
Explanation: This trick works because the series of operations involves carefully chosen numbers that result in a final number uniquely associated with their birth month.
Feel free to use this trick as a playful and surprising way to guess someone’s birth month. Just make sure they follow the steps correctly for the magic to work!