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A toy has a regular tetrahedron, a cube and a base with triangular and square hollows. If you fit a shape into the correct hollow a bell rings. How many times does the bell ring in a complete game?

Alice's mum needs to go to each child's house just once and then back home again. How many different routes are there? Use the information to find out how long each road is on the route she took.

In 1871 a mathematician called Augustus De Morgan died. De Morgan made a puzzling statement about his age. Can you discover which year De Morgan was born in?

If the numbers 5, 7 and 4 go into this function machine, what numbers will come out?

Look at the squares in this problem. What does the next square look like? I draw a square with 81 little squares inside it. How long and how wide is my square?

Use your knowledge of angles to work out how many degrees the hour and minute hands of a clock travel through in different amounts of time.

You'll need a collection of cups for this activity.

Complete the squares - but be warned some are trickier than they look!

What patterns can you make with a set of dominoes?