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?
Sequences of multiples keep cropping up...
Here is a chance to play a fractions version of the classic Countdown Game.
Using the digits 1 to 9, the number 4396 can be written as the product of two numbers. Can you find the factors?
How many winning lines can you make in a three-dimensional version of noughts and crosses?
The clues for this Sudoku are the product of the numbers in adjacent squares.
