
Largest even
How would you create the largest possible two-digit even number from the digit I've given you and one of your choice?

Poly plug rectangles
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?

Two numbers under the microscope
This investigates one particular property of number by looking closely at an example of adding two odd numbers together.

Which scripts?
There are six numbers written in five different scripts. Can you sort out which is which?

Rectangle tangle
The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the shapes?

Fraction fascination
This problem challenges you to work out what fraction of the whole area of these pictures is taken up by various shapes.