Powers of numbers behave in surprising ways. Take a look at some of these and try to explain why they are true.
Charlie has moved between countries and the average income of both has increased. How can this be so?
What's the largest volume of box you can make from a square of paper?
If you have a large supply of 3kg and 8kg weights, how many of each would you need for the average (mean) of the weights to be 6kg?
How will you complete these interactive Venn diagrams?
Can you find a reliable strategy for choosing coordinates that will locate the treasure in the minimum number of guesses?
Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?
Crosses can be drawn on number grids of various sizes. What do you notice when you add opposite ends?
This is a game for two players. Can you find out how to be the first to get to 12 o'clock?
