9 Cards - Spelling Math Card Tricks
Spectator choose 9 cards from the cards deck randomly. That 9 cards then divide into 3 piles with 3 cards in each pile. The spectator then choose a pile they like and see the bottom card at that pile. That will be their chosen card.
And after all the cards put back into one pile, the performer ask the spectator to spell the name of their chosen card while put down a card to the table one by one. One character equal to one card. Then after the magician ask them to spell the magic word, the chosen card show itself as like the chosen card responded to the called. An amazing spelling math card tricks.