There are lots of different methods to find out what the shapes are worth - how many can you find?
In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?
Here is a selection of different shapes. Can you work out which ones are triangles, and why?
Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?
Can you find the values at the vertices when you know the values on the edges of these multiplication arithmagons?
Where should you start, if you want to finish back where you started?
Can you figure out how sequences of beach huts are generated?
Play around with sets of five numbers and see what you can discover about different types of average...
Can you do a little mathematical detective work to figure out which number has been wiped out?
