It’s New Year’s Eve, and Rosie has been checking the end-of-year balance in her savings account but things just don’t add up. Maths Crimes Detective Al Gebra sorts out her monthly mix-up to explain why she seems to have more money than expected. As a result, Rosie can splash out the cash in the New Year sales.

This clip is from:

A variety of questions could be set which require students to interpret information about payments which are to be made monthly/weekly and include interest charged or paid. These could include topics like Hire Purchase as well as regular savings plans. This would also be a suitable topic for P.S.E.