24 Challenge
Encyclopedia : 2 : 24 : 24C : 24 Challenge
24 Challenge is a competition based on the popular 24 Game sold by Suntex.
Rules of play
In 24 Challenge, the objective is to calculate a given set of 4 one-digit numbers to 24 using the basic operations in mathematics (addition, subtraction, multiplication, and division).For example, given on a card, a player could score by being the first to tap the card's center and describe how to achieve 24, starting with the last operation first (for example, after tapping, "24 times 1 is 24. 6 times 4 is 24; 24 times 1 is 24; 24 times 1 is 24."). All numbers on the cards must be used exactly once.
Scoring
Scores are kept using a one-to-three 'dot' scoring system. One-dot cards (white) are worth one point, two-dot (yellow) are worth two, and three-dot (red) are worth three.Variations
There have been many variations on the 24 Challenge game, as one deck of cards can be fairly easily memorized, thus creating a simple memory game instead of a skills tester. Some variations include:
- Two-digit cards - cards may have 2-digit numbers on them, leading to more difficulty as not as many students are as familiar with multiples of larger numbers.
- Variables - Cards have to wheels, each has three numbers with one number "missing." The object is to find a number (any integer 1 - 9) which, when used with the other numbers on each wheel, can make 24 on both wheels.http://www.24game.com/Catalog/catalog96_VAR.htm
- 20-something challenge - a non-official version of the game where a numbe is designated somewhere in the 20s and four playing cards are turned over. This game type does not always result in a possible solution.
External links
- [Catalog of all varieties of 24 from the Suntex site]
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