Mathematics Tutor 4A is specially written to serve as the mathematics companion for you in the Secondary 4 Express classes. This new 5-chapter volume, which follows closely to the newly implemented mathematics syllabus by the Ministry of Education, is comprehensive as it is suitable for the students 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 you mathematics textbook, this series contains more than 500 questions and worked examples. Each topic in Mathematics Tutor 4A 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 can 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 new chapters to help you refresh and consolidate all the concepts learned in these concepts.