Introduction
Have you ever wanted to impress your friends with your math skills? Look no further than the 9 Card Math Magic Trick! This trick is simple to learn but will leave your audience amazed at your mathematical ability.
The Setup
To perform this trick, you will need a deck of cards. Remove the cards Ace through 9 of any suit and shuffle them randomly. Place the 9 cards face down on a table or other flat surface.
The Trick
Ask a member of your audience to select any card from the 9 face-down cards. Without revealing the card they chose, ask them to place it on the table and then cover it with their hand. Next, ask them to take the remaining 8 cards and arrange them into 3 piles of any size they choose.
The Math
Now comes the math part. Ask the person to add up the numerical values of the cards in each pile. For example, if they have a pile with a 3, 5, and 7, the sum would be 15. Have them write down the sum of each pile on a piece of paper.
The Reveal
Finally, ask the person to add up the three sums they have written down. The final sum will be the numerical value of the card they selected at the beginning of the trick! To reveal the card, have them remove their hand from on top of the card on the table.
How it Works
The trick works because of the mathematical properties of the cards. No matter how the person divides the cards into piles, the sum of each pile will always be a multiple of 3. For example, if they have a pile with a 2, 4, and 7, the sum would be 13, which is a multiple of 3. This means that when you add up the three sums they wrote down, the final number will be a multiple of 3. The only card in the deck that has a numerical value that is not a multiple of 3 is the card with the numerical value of 4, which is why it will always be the final answer.
Practice Makes Perfect
As with any magic trick, practice makes perfect. Try the trick out on your family and friends until you feel comfortable performing it. Once you have mastered the trick, you can impress anyone with your incredible math skills!
Conclusion
The 9 Card Math Magic Trick is a fun and impressive way to show off your math skills. With a little practice, you will be able to perform this trick flawlessly and leave your friends and family amazed. Give it a try and see for yourself!
