This is the first of a three-book series specially written to serve as the mathematics companion for you in the Secondary 3 Express classes. This newly updated 3-chapter volume, which follows closely to the newly implemented mathematics syllabus by the Ministry of Education, is comprehensive as it is suitable for the student who self-studies at home. It is dedicated to helping you revise in an effective and efficient way, as well as to make mathematics relevant to you later in life. As a complete study and answer guide to your mathematics textbook, this series contains more than 500 questions and worked examples. Each topic in this all-in-one guide contains the following features: - Targets to help you focus on the relevant concepts during your revision. - Comprehensive Notes and Worked Examples where a summary of the important concepts and formulas are emphasized. The worked examples have been written to help you learn how to solve questions of similar type. - Tutorials by Topics are found at the end of each chapter. Each contains a wide range of questions, written to supplement classroom exercises, for you to practice and apply the mathematics concepts and formulas learned. - Thinking Skills Corner is where you find more challenging and thought-provoking questions. Here you will be able to train your problem-solving skills by applying the concepts learned in the chapters. - Revision Exercises are found after every few chapters to help you refresh and consolidate all the concepts learned in these chapters. Math Problems in Real-World Contexts have been included throughout the book to help you apply mathematics in everyday life. - Answers with Complete Worked Solutions are provided in a separate booklet and will be useful for your reference. You will find the books useful during your revision and will also help to reinforce the concepts that you may be weaker in.