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Racing Odds

In a race the odds are: 2 to 1 against the rhinoceros winning and 3 to 2 against the hippopotamus winning. What are the odds against the elephant winning if the race is fair?

Stop or Dare

All you need for this game is a pack of cards. While you play the game, think about strategies that will increase your chances of winning.

Game of PIG - Sixes

Can you beat Piggy in this simple dice game? Can you figure out Piggy's strategy, and is there a better one?

Nine or Ten?

Age 11 to 14 Short
Challenge Level

Convince yourself that when you roll two dice you are more likely to score 9 than 10.

If I roll 3 dice, which is more likely, a total score of 9, or a total score of 10?

You can find more short problems, arranged by curriculum topic, in our short problems collection.