Arithmagons
Can you find the values at the vertices when you know the values on the edges?
Can you find the values at the vertices when you know the values on the edges?
Can you find the pairs that represent the same amount of money?
Semi-regular tessellations combine two or more different regular polygons to fill the plane. Can you find all the semi-regular tessellations?
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
Can you decide whether these short statistical statements are always, sometimes or never true?
Here is a chance to play a fractions version of the classic Countdown Game.
Construct two equilateral triangles on a straight line. There are two lengths that look the same - can you prove it?
Using the digits 1 to 9, the number 4396 can be written as the product of two numbers. Can you find the factors?