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Roll These Dice
Roll two red dice and a green dice. Add the two numbers on the red dice and take away the number on the green. What are all the different possible answers?
Bipin's Choice
Bipin is in a game show and he has picked a red ball out of 10 balls. He wins a large sum of money, but can you use the information to decided what he should do next?
Trick or Treat
Mrs. Smith had emptied packets of chocolate-covered mice, plastic frogs and gummi-worms into a cauldron for treats. What treat is Trixie most likely to pick out?
Age 7 to 11
Challenge Level
Try playing the game a large number of times (e.g. $30$ or more) with a friend and record who wins each time. You could do this at school and ask members of your class to play five games in pairs, then gather all the results together. Did someone seem to win more often?
If the first cube drawn out of the bag is purple, what is the
chance that the next one is the same? Or different?
What about if the first cube is yellow?
NRICH is part of the family of activities in the Millennium Mathematics Project.