This CGP Revision Guide is the ideal companion to Edexcel's 'Grade 9-1' International GCSE Maths course (specification A). Every topic is explained in a concise, friendly style, with plenty of step-by-step examples to make everything crystal clear. Grade information (on the new 9-1 scale) is included to show the difficulty level of each topic, and there are exam-style questions throughout the book. Finally, there's a code that gives you access to a free Online Edition of the whole book - this also includes fully worked answers to all the exam-style questions. For even more International GCSE Maths practice, try CGP's matching Workbook (9781782946724) and Exam Practice Workbook (9781782946700).