Challenge 24 is a math card game in which the object is to find a way to manipulate four integers so that the end result totals the number “24”. This game was played in Shanghai in the 1960’s and commercialized by Dr. Robert Sun in 1988. When the game was introduced to the Erie Diocese, OLMC was one of the pilot schools. Over the years, the game has helped students develop their basic skills of addition, subtraction, multiplication, and division in a fast and fun game. There is a yearly competition among schools. See www.24game.com