problem Multiples Sudoku Age 11 to 14 Challenge level Each clue in this Sudoku is the product of the two numbers in adjacent cells.
problem Today's date - 01/06/2009 Age 5 to 11 Challenge level What do you notice about the date 03.06.09? Or 08.01.09? This challenge invites you to investigate some interesting dates yourself.
problem Debasing the Coinage Age 11 to 14 Challenge level How much lighter will £5 worth of 5p's be with these new lighter coins?
problem Bus Route Age 11 to 14 Challenge level How far apart are the first and last bus stops in this bus route?
problem Oh! Harry! Age 7 to 11 Challenge level A group of children are using measuring cylinders but they lose the labels. Can you help relabel them?
problem Rabbits in the pen Age 7 to 11 Challenge level Using the statements, can you work out how many of each type of rabbit there are in these pens?
problem Cows and Sheep Age 7 to 11 Challenge level Use your logical reasoning to work out how many cows and how many sheep there are in each field.
problem A First Product Sudoku Age 7 to 14 Challenge level Given the products of adjacent cells, can you complete this Sudoku?