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Match the cumulative frequency curves with their corresponding box plots.
Can you do a little mathematical detective work to figure out which number has been wiped out?
Infographics are a powerful way of communicating statistical information. Can you come up with your own?
Can you find the hidden factors which multiply together to produce each quadratic expression?
Can you find the values at the vertices when you know the values on the edges of these multiplication arithmagons?
Imagine a room full of people who keep flipping coins until they get a tail. Will anyone get six heads in a row?
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?
What can you see? What do you notice? What questions can you ask?
Can you work out which spinners were used to generate the frequency charts?
Use the differences to find the solution to this Sudoku.
The clues for this Sudoku are the product of the numbers in adjacent squares.
Semi-regular tessellations combine two or more different regular polygons to fill the plane. Can you find all the semi-regular tessellations?
Can you find the values at the vertices when you know the values on the edges?
Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.
A spider is sitting in the middle of one of the smallest walls in a room and a fly is resting beside the window. What is the shortest distance the spider would have to crawl to catch the fly?
A hexagon, with sides alternately a and b units in length, is inscribed in a circle. How big is the radius of the circle?
Chris and Jo put two red and four blue ribbons in a box. They each pick a ribbon from the box without looking. Jo wins if the two ribbons are the same colour. Is the game fair?
Charlie likes tablecloths that use as many colours as possible, but insists that his tablecloths have some symmetry. Can you work out how many colours he needs for different tablecloth designs?
How many winning lines can you make in a three-dimensional version of noughts and crosses?
How many solutions can you find to this sum? Each of the different letters stands for a different number.
Using the digits 1 to 9, the number 4396 can be written as the product of two numbers. Can you find the factors?
In 15 years' time my age will be the square of my age 15 years ago. Can you work out my age, and when I had other special birthdays?