# Calculating 24

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The rule is simple: pick any four cards and try to get a result of 24 from the numbers on the cards, using only the four basic arithmetic operations: addition (+), subtraction (-), multiplication (*), and division (/).

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Contributed by: Xiangdong Wen (March 2011)

Open content licensed under CC BY-NC-SA

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"Calculating 24"

http://demonstrations.wolfram.com/Calculating24/

Wolfram Demonstrations Project

Published: March 7 2011