ABOUT THE 24 GAMES: The object of the games is to make the number 24 using all 4 numbers on a card. You can add, subtract, multiply, and divide. Each number may be used only once. There is at least one solution per card. Each set provides for 3 levels of challenge and includes 192 card combinations.

Variables requires players to find a variable (any whole number from 1 to 9) which, when used with other numbers on the card, can make 24 on both wheels. Two cards can be put together to increase the challenge.