In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
Identical squares of side one unit contain some circles shaded blue. In which of the four examples is the shaded area greatest?
My two digit number is special because adding the sum of its digits to the product of its digits gives me my original number. What could my number be?
It's easy to work out the areas of most squares that we meet, but what if they were tilted?
What is the greatest volume you can get for a rectangular (cuboid) parcel if the maximum combined length and girth are 2 metres?
A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?
