Can you arrange these numbers into 7 subsets, each of three numbers, so that when the numbers in each are added together, they make seven consecutive numbers?

Can you find a relationship between the number of dots on the circle and the number of steps that will ensure that all points are hit?

Can you find the values at the vertices when you know the values on the edges?

It is possible to identify a particular card out of a pack of 15 with the use of some mathematical reasoning. What is this reasoning and can it be applied to other numbers of cards?

Discover a handy way to describe reorderings and solve our anagram in the process.

Yanqing from Devonport High School for Girls sent us a very clear explanation of her solution to this problem.

Learn how to use the Shuffles interactivity by running through these tutorial demonstrations.

Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?