The Egyptians were famous for hiding intricate mathematical expressions in their buildings, such as π, for example. In this game, each player is an explorer in Egypt, and must reveal the secrets of a mathematical pyramid. Goal of the game: Get to the top of the pyramid, revealing its secrets, and obtaining the most precious stones (treasures). Playing the game: In your turn, you need flip a card number ( pyramid's stone) and do mathematical operations that have this number as a result. You should do this for each stone in 2 minutes, and will be the turn of another player. Who gets reaches the top of the pyramid first, earn gems. Three rounds are played, and the player who have more gems wins.