What is the smallest number of answers you need to reveal in order to work out the missing headers?
The Number Jumbler can always work out your chosen symbol. Can you work out how?
Can you use the clues to complete these 3 by 3 Mathematical Sudokus?
Can you use the clues to complete these 4 by 4 Mathematical Sudokus?
In these multiplication and division games, you'll need to think strategically to get closest to the target.
In this 100 square, look at the green square which contains the numbers 2, 3, 12 and 13. What is the sum of the numbers that are diagonally opposite each other? What do you notice?
On the graph there are 28 marked points. These points all mark the vertices (corners) of eight hidden squares. Can you find the eight hidden squares?
Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?
