Probability

problem

Scratch Cards

Age

14 to 16

Challenge level

To win on a scratch card you have to uncover three numbers that add up to more than fifteen. What is the probability of winning a prize?
game

Scissors, Paper, Rock

Age

5 to 7

Challenge level

Play this well-known game against the computer where each player is equally likely to choose scissors, paper or rock. Why not try the variations too?
problem

Probable Words

Age

5 to 7

Challenge level

If you asked your mum/dad/friend to take you to the park today, what sort of response might you get?
problem

Two and One

Age

5 to 7

Challenge level

Terry and Ali are playing a game with three balls. Is it fair that Terry wins when the middle ball is red?
problem

Tricky Track

Age

7 to 11

Challenge level

In this game you throw two dice and find their total, then move the appropriate counter to the right. Which counter reaches the purple box first?
problem

You Never Get a Six

Age

7 to 11

Challenge level

Charlie thinks that a six comes up less often than the other numbers on the dice. Have a look at the results of the test his class did to see if he was right.
problem

Three Spinners

Age

7 to 11

Challenge level

These red, yellow and blue spinners were each spun 45 times in total. Can you work out which numbers are on each spinner?
problem

Probably...

Age

7 to 11

Challenge level

You'll need to work in a group for this problem. The idea is to decide, as a group, whether you agree or disagree with each statement.
problem

Bipin's Choice

Age

7 to 11

Challenge level

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?
problem

Trick or Treat

Age

7 to 11

Challenge level

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?