The Indian Certificate of Secondary Education, or ICSE, is more flexible in nature as the entire syllabus differs immensely from that followed by other boards. The board provides a more detailed explanation of the concepts in various subjects, keeping more focus on English Language and Literature. All In One ICSE Mathematics Class 9 2020-21 , after achieving great success as the best self-study guide for CBSE, has now entered the zone of the ICSE Board, giving complete study practice and assessment as the full package of study material. The current edition of All In One ICSE Mathematics of the ICSE Board for class 9th has been specifically written for students of this particular board. This book acts as a self-study guide that provides all the explanations and guidance needed to study. This guide carries 18 chapters fully explained; the text material of each chapter provides complete understanding that helps students avoid reading unnecessary material. The book is provided with figures, charts, and notes wherever required. After each chapter, there is Exam Practice, which has questions as per exam pattern. Detailed explanations of all questions have been provided for all the questions. Chapter Exercise is an assessment exercise for the complete chapter; with this exercise, students can understand their chapter and can prepare for it accordingly, and much more, like Challengers Checkpoints, which provide text exercises given in between the text material, having 4-5 questions based on the related concepts. Solved papers have been given in every concept in such a way that they cover all the aspects of a concept. At the end, explanations of Challengers, Internal Assessment of a practical work sample question paper, and the latest ICSE Specimen Question Paper are included. Packed with detailed theory, solved and unsolved exercises, experiments, sample question papers, and the latest ICSE specimen paper, it enables every student to go above and beyond in their examinations. TABLE OF CONTENT: Rational and Irrational Numbers, Compound Interest, Expansions, Factorisation, Simultaneous Linear Equations, Indices/Exponents, Logarithms, Triangles, Mid-Point and Pythagoras Theorems, Rectilinear Figures, Construction of Polygons, Areas, Theorems on Parallelograms and Triangles, Circles, Statistics, Perimeter and Area of Plane Figures, Surface Area and Volumes of 3-D Solids, Trigonometry, Coordinate Geometry and Distance Formula, Explanations of Challengers, Internal Assessment of Practical Work, 5 Sample Question Papers, Latest ICSE Specimen Question Paper.