The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?
Imagine we have four bags containing numbers from a sequence. What numbers can we make now?
How many more miles must the car travel before the numbers on the milometer and the trip meter contain the same digits in the same order?
Use a single sheet of A4 paper and make a cylinder having the greatest possible volume. The cylinder must be closed off by a circle at each end.
Experiment with the interactivity of "rolling" regular polygons, and explore how the different positions of the dot affects its vertical and horizontal movement at each stage.
Imagine you were given the chance to win some money... and imagine you had nothing to lose...
Collect as many diamonds as you can by drawing three straight lines.
There are lots of different methods to find out what the shapes are worth - how many can you find?
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
