This short activity requires students to think about how much money they'll receive from a rich granny if they get different amounts every year. Eg, £10 less than last year, twice as much as last year etc. I use this with my older students in small groups, and get them to think about life expectancy and how much they'd expect to receive from each option after so many years. I use this with older students as it could be a little morbid for less mature learners. As an extension, I've asked students to tell me after how many years each option would be best. IE after 5 years, which is best? 10 years? 20? A further extension could be to find an algebraic expression to find the amount of money from each option after "n" years.To round off (depending on student group) I have also included an excel spreadsheet which shows the value of each offer for up to 30 years. Depending on student group, I might take this opportunity to embed IT and discuss the spreadsheet formulae, or even make it from scratch together.This has been adapted from a resource I saw a thumbnail of on CMSP, but which wasn't available to download. Note: The odd address and name "Camille" are a reference to a popular computer game "League of Legends", in case students ask!