Math mean, that is! The rules are simple-roll 6 dice. You may make 2 rolls of all or some of the dice, as desired. Add your dice and chose "high" or "low". This determines whether you add or subtract the mean from your total for your score. The goal is to stay as far away as possible from the mathematical mean (average) of the six dice added together (21). Great way to practice math computation for children and parents alike! 2 or more player