Use your skill and judgement to match the sets of random data.
Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
The items in the shopping basket add and multiply to give the same amount. What could their prices be?
Construct two equilateral triangles on a straight line. There are two lengths that look the same - can you prove it?
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?
Can you make sense of the three methods to work out the area of the kite in the square?
A game in which players take it in turns to choose a number. Can you block your opponent?
Use the differences to find the solution to this Sudoku.
Can you use small coloured cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of each colour?