Here are some rods that are different colours. How could I make a dark green rod using yellow and white rods?

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

My cube has inky marks on each face. Can you find the route it has taken? What does each face look like?

Can you order the digits from 1-3 to make a number which is divisible by 3 so when the last digit is removed it becomes a 2-figure number divisible by 2, and so on?

Do you know a quick way to check if a number is a multiple of two? How about three, four or six?

There are three tables in a room with blocks of chocolate on each. Where would be the best place for each child in the class to sit if they came in one at a time?

Place the 16 different combinations of cup/saucer in this 4 by 4 arrangement so that no row or column contains more than one cup or saucer of the same colour.

This cube has ink on each face which leaves marks on paper as it is rolled. Can you work out what is on each face and the route it has taken?

Have a look at the interesting alternative versions of the Dotty Six game that were suggested.

In this article for teachers, Bernard describes ways to challenge higher-attaining children at primary level.

We're excited about this new program for drawing beautiful mathematical designs. Can you work out how we made our first few pictures and, even better, share your most elegant solutions with us?