Thought I would start a thread for CM2 Paper B. One of my questions for the ActEd tutors is What are the Excel functions we must know for CM2 Paper B?
There's no definitive list. But we don't think you'll need anything particularly advanced. Once you start working through our materials you'll pick up what you you need to know.
Have you logged in to view the PBOR resources yet? The 'Introduction to Excel' paper has a number of functions mentioned - most of these are fairly basic but good to review.