The 24 Game is a mathematical card game in which the object is to find a way to manipulate four integers so that the end result is 24. Addition, subtraction, multiplication, or division, and sometimes other operations, may be used to make four digits from one to nine equal 24. For an example card with the numbers 4,7,8,8, a possible solution is the following: (7-8/8)*4=24. “?” button : Select 4 cards to play. "i" button : Show solutions. "?" button : Choose card background or screen background. Tap top left card to deal. Tap a card to move.