|Simple to learn but challenging enough for math puzzle addicts. Place the tiles randomly on the board, start the timer and find as many equations as you can using addition, subtraction, multiplication and division. Basically you're trying to see connected equations so in the picture 9 - 6 = 3 or 2 x 7 = 14. You're racing against the clock (3 minutes) plus you only earn points for equations no other player finds. Includes game board, 50 tally sheets, storage pouch, 3 minute timer and 30 digit tiles. 2 or more players. Age 8+. But we think this would challenge much older children.