Being resourceful

Can you see how these factor-multiple chains work? Find the chain which contains the smallest possible numbers. How about the largest possible numbers?

This challenge is a game for two players. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Can you get four in a row?

The challenge for you is to make a string of six (or more!) graded cubes.

Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you work out the rule for each light?

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

Have a look at the results for some events at past Olympic Games. Can you use these to predict the results at the next Olympics?

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?

Try adding fractions using A4 paper.

Can you compare these bars with each other and express their lengths as fractions of the black bar?