This is a worksheet based on data supplied by a librarian. The library had been collecting second hand books from people and sent them to BetterWorld Books. The librarian told me that 688 books had been sent and then provided the information of what would be saved, earned or donated if there were 1000 books sent. The worksheet asks the students to work out the quantities for all the books that had been sent. It will be suitable as a group project for lower ability learners but should be suitable for learners at Level 2 to work through on their own. Data on the BetterWorld Books web site could be used to create other questions.