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Use the lines on this figure to show how the square can be divided into 2 halves, 3 thirds, 6 sixths and 9 ninths.

Andy had a big bag of marbles but unfortunately the bottom of it split and all the marbles spilled out. Use the information to find out how many there were in the bag originally.

Can you work out what shape is made when this piece of paper is folded up using the crease pattern shown?

Cut differently-sized square corners from a square piece of paper to make boxes without lids. Do they all have the same volume?

Can you use the clues to complete these 3 by 3 Mathematical Sudokus?

Find all the numbers that can be made by adding the dots on two dice.

Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?

Mandeep's watch loses two minutes every hour. Adam's watch gains one minute every hour. Can you work out what time they arrived at the airport?

In a right-angled tetrahedron prove that the sum of the squares of the areas of the 3 faces in mutually perpendicular planes equals the square of the area of the sloping face. A generalisation of Pythagoras' Theorem.

A hexagon, with sides alternately a and b units in length, is inscribed in a circle. How big is the radius of the circle?