GCSE Maths Revision
Look at the attached spreadsheet, it shows you what topics have come on recent papers and how many marks they are worth. You should look at this and see whaat questions always come up and which have not come up in recent years and do some of these for your revision.
There is also a paper based on questions that have not come up in recent years so you should do this. This is non calculator. Good luck with your revision!