You are rolling a side sided dice. All the numbers you rolled add up, but if you get a one, you lose all your points for that turn. If you choose to stop, you will save the points to get for that turn, and put it into your total points. I recommend First to get to 100, but you can pick higher or lower. After the game ends, you can see the statistics about the probability, and learn some things from it, and make a strategy.
It's a math game I played at school.