Solution. The total sales was 42. So draw a bar and label it with 42. Maya is identified first as she sold the fewest cakes. As we do not know how much Maya sold, we let her sales equal 1 section.

The bar model is a way to see a calculation visually. FInd out how to use it in this Bitesize KS3 maths video. ... Bar modelling can be used to solve problems involving sales and money.