Some of the numbers have fallen off Becky's number line. Can you figure out what they were?
How good are you at estimating angles?
Construct two equilateral triangles on a straight line. There are two lengths that look the same - can you prove it?
The items in the shopping basket add and multiply to give the same amount. What could their prices be?
Andrew Wiles, who famously proved Fermat's Last Theorem, talks about being a mathematician and dealing with being stuck.