1 out of 3
Put operations signs between the numbers 3, 4, 5 and 6 to make the highest possible number and lowest possible number.
2 out of 3
A 750 ml bottle of concentrated orange squash is enough to make fifteen 250 ml glasses of diluted orange drink. How much water is needed to make 10 litres of this drink?
2 out of 3
Can you arrange the digits 1, 1, 2, 2, 3 and 3 to make a Number Sandwich?
1 out of 3
By tossing a coin one of three princes is chosen to be the next King of Randomia. Does each prince have an equal chance of taking the throne?
1 out of 3
Can you arrange these numbers into 7 subsets, each of three numbers, so that when the numbers in each are added together, they make seven consecutive numbers?
1 out of 3
Some people offer advice on how to win at games of chance, or how to influence probability in your favour. Can you decide whether advice is good or not?
1 out of 3
If you have only 40 metres of fencing available, what is the maximum area of land you can fence off?
2 out of 3
Place the numbers 1 to 6 in the circles so that each number is the difference between the two numbers just below it.
1 out of 3
Looking at the Olympic Medal table, can you see how the data is organised? Could the results be presented differently to give another nation the top place?
1 out of 3
There are many different methods to solve this geometrical problem - how many can you find?
