Imagine a very strange bank account where you are only allowed to do two things...
Investigate different ways of making £5 at Charlie's bank.
Different combinations of the weights available allow you to make different totals. Which totals can you make?
These Stage 3 and 4 problems have not yet been solved. Can you be the first?
Charlie likes to go for walks around a square park, while Alison likes to cut across diagonally. Can you find relationships between the vectors they walk along?
Starting with two basic vector steps, which destinations can you reach on a vector walk?