• Mastering Mathematics is a series of exercises specially written for Forms 1 to 3 students. This series is a rich source of questions at elementary and intermediate levels, which aims at providing sufficient opportunities for students to lay a solid foundation on the subject. Addressing the question styles widely adopted nowadays, real-life applications and some challenging questions are included. Students should then have a better understanding of each topic and thus, be at a better position to master and apply what they have learnt. We are confident that students' performance in tackling problems encountered during examinations should be greatly enhanced.