O-Level Mathematics has been designed for O Level Additional Mathematics students. It covers latest syllabus 2020 prescribed by CIE . I tried to make an attempt to present the material in a simple, clear and straightforward way.Three procedures are indispensable in the enjoyment and success in Mathematics: understanding, memorization and practice.The purpose of this book is to help the students in doing these. A large number of practice questions from past papers examination has been provided to help the students in learning of step-by-step procedure of problem solving. This will enable students to revise and practice systematically. Students are urged to grapple with these questions for acquiring solid understanding.

Thanks are due to the LACAS family for providing professionaI environment and my colleagues to assist in logical thinking. I acknowledge with thanks the generous cooperation by Mr Aamir Mustafa, Mr Asghar Hayat,Mr Qamar Fayyaz,Mr Zahid Amin and my son Junaid Rafique. I regret any error and misprints and pledge to correct these in my next edition.