Working systematically

Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether!

Use your logical thinking skills to deduce how much Dan's crisps and ice cream cost altogether.

My local DIY shop calculates the price of its windows according to the area of glass and the length of frame used. Can you work out how they arrived at these prices?

This task combines spatial awareness with addition and multiplication.

Try adding fractions using A4 paper.

There are lots of different methods to find out what the shapes are worth - how many can you find?

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 rhombus.

How many DIFFERENT quadrilaterals can be made by joining the dots on the 8-point circle?

During the third hour after midnight the hands on a clock point in the same direction (so one hand is over the top of the other). At what time, to the nearest second, does this happen?

A magician took a suit of thirteen cards and held them in his hand face down. Every card he revealed had the same value as the one he had just finished spelling. How did this work?