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Magic in Maths

 
There are a number of magicians who have created mathematical card tricks and would be worth checking out, such as the 20th century magicians Bob Hummer and John Scarne. A maths card trick does not involve slight of hand but works due to a hidden pattern. Here is a lovely mathematical card trick for you to try.

Start with 15 cards of which the bottom card is known. Deal out more than 7cards into a pile and then place the remaining cards on top of that pile. Repeat this twice more using the same number. The known bottom card will always rise like cream to the top of the pile.

This very clever card trick was invented by Colm Mulcahy and it will always work provided that the number of cards you deal out is more than half the number of cards in the pack. Original Link

 

Mathematical Trickery
(produced by the more maths grads project)

Teacher Information (DOC 265KbPDF 95Kb)
Maths Tricks (PPT 654Kb)
Number Puzzles (DOC 25KbPDF 46Kb)
Magic Matrix (DOC 48KbPDF 32Kb)
All the Aces (DOC 6.24MbPDF 138Kb)
Johnny Ball's favourite card trick (DOC 4.8MbPDF 112Kb)
Mystic Richard card trick (DOC 810KbPDF 103Kb)
Download all Mathematical Trickery files, here (ZIP 11.9Mb)  Original Link