Edexcel GCSE Mathematics 16 Author:Keith Pledger, et al. Edexcel GCSE Mathematics 16+ helps students through their maths course in a year, whether they are new to GCSE or preparing to retake the exam. It provides coverage of all the key intermediate tier topics. Edexcel GCSE Mathematics 16+ helps students through their maths course in a year, whether they are new to GCSE or preparing to retake the exa... more »m. It provides coverage of all the key intermediate tier topics.« less