Platinum Series
Several variations of Math 24 cards exist, and are used in the Platinum stages of tournaments. This level of play is highest in the 24 game, and only 7/8 graders can participate. The cards used are Algebra/exponents, fractions/decimals, and integers. They can be purchased at 24 game.com ( link located here ). These numbers are treated the same way as regular digits, and must be used in a solution once.
A special "integers" deck uses negative digits alongside positive numerals. (Cards in this version may be solved for positive or negative 24.) However, in the tournament, positive 24 must be found.
Algebra version cards contain values with a variable, such as 3y or 2x-4. In solving a problem, the player must state what each variable represents, then give the solution using that variable in it. Cards may contain more than one variable on a side; three-dot cards commonly use x, y, and z all on one card.
The "Exponent" version of Math 24 integrates roots and powers into game play. These cards have a special center marking, indicating that one digit (or result from a previous equation) must be squared, cubed, or have the square root or cube root taken. This results in a card requiring four operations, instead of the usual three. For example, a card with the digits 2, 3, 4, and 8 might be solved by stating that 2x8=16, the square root of 16 is 4, 4+4=8, and 8x3=24.
The last form of platinum play are the "fraction" cards. They involve fractions along with usually whole numbers, except in the case of some level three cards.
Read more about this topic: 24 Game
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