Caroline and James pick sets of five numbers. Charlie tries to find three that add together to make a multiple of three. Can they stop him?

How is it possible to predict the card?

Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?

Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...

Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?

Can you picture how to order the cards to reproduce Charlie's card trick for yourself?

Take a look at the video and try to find a sequence of moves that will untangle the ropes.

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

Watch the video to see how to add together an arithmetic sequence of numbers efficiently.

Here is a chance to create some Celtic knots and explore the mathematics behind them.

Dotty Six is a simple dice game that you can adapt in many ways.

Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?

Generate three random numbers to determine the side lengths of a triangle. What triangles can you draw?