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ICSE Class 9 Maths: Chapter-wise Notes and PYQs

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ICSE · Class 9 · 2026-27

ICSE Class 9 Mathematics: chapter-wise study guide

All 17 chapters of ICSE Class 9 Mathematics for the 2026-27 session. Each chapter page explains the ideas, gives tricks to remember them, shows where students lose marks, and links to practice.

  • 17 chapters
  • 34 topic pages
Start with the first chapter

Exam note: Class IX is a school examination: CISCE says the Class IX final examination is conducted internally by schools. The ICSE 2028 syllabus sets the Class IX Mathematics paper at 80 marks and 3 hours, plus 20 marks of internal assessment (at least two assignments); CISCE publishes no Class IX question-paper layout.

Pure Arithmetic

  1. Rational and Irrational Numbers

Commercial Mathematics

  1. Compound Interest

Algebra

  1. Expansions

  2. Factorisation

  3. Simultaneous Linear Equations

  4. Indices (Exponents)

  5. Logarithms

Geometry

  1. Triangles: Congruency and Inequalities

  2. Mid-point and Intercept Theorems

  3. Pythagoras Theorem

  4. Rectilinear Figures

  5. Area Theorems

  6. Circle

Statistics

  1. Statistics

Mensuration

  1. Mensuration

Trigonometry

  1. Trigonometry

Coordinate Geometry

  1. Coordinate Geometry

Syllabus source: CISCE ICSE 2028 Mathematics (51) syllabus (Classes IX and X), CISCE Regulations for ICSE Examination Year 2028