Can you find any two-digit numbers that satisfy all of these statements?
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?
Can you work out which spinners were used to generate the frequency charts?
These Stage 3 and 4 problems have not yet been solved. Can you be the first?
These Stage 4 and 5 problems haven't been solved yet. Can you be the first?
Use your skill and judgement to match the sets of random data.