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CBSE Class 9 Mathematics — Quick Revision Notes

Quick revision notes for CBSE Class 9 Mathematics. Key formulas, concepts, and definitions for last-minute board exam preparation.

Quick Summary

These revision notes cover the key concepts, formulas, and definitions for CBSE Class 9 Mathematics. Use them for last-minute revision before your board exam.

How to Revise Effectively

  • Active recall: Cover the notes, try to recall key points, then check. This is 3× more effective than passive reading.
  • Spaced repetition: Revise each chapter at increasing intervals — Day 1, Day 3, Day 7, Day 14.
  • Write, don't just read: Writing formulas and key points by hand improves retention significantly.
  • Teach someone: Explaining a concept to a friend or family member is the best test of understanding.

Chapter-Wise Revision Notes — 8 Chapters

Revise each chapter below. Focus on formulas, definitions, and diagrams. Complete all 8 chapters for thorough preparation.

1

Orienting Yourself : The Use of Coordinates

Topics covered

  • 4. Distance between two points in the plane
  • 5. Historical development of coordinate ideas
A coordinate system is a structuredThe plane in which the axesThe point of intersection ofIn coordinates (xA point on the x
2

Introduction to Linear Polynomials

Topics covered

  • 1. Algebraic expressions and one-variable polynomials
  • 2. Linear polynomials, linear equations, and input-output form
  • 3. Linear patterns in sequences and word problems
  • 4. Linear growth and linear decay
Expressions such as 4xIn 4x + 5y + 3The highest power of the variableA polynomial of degree oneA linear polynomial becomes a linear
3

The World of Numbers

Topics covered

  • 1. Growth of Number Systems
  • 2. Zero and Integers
  • 3. Rational Numbers
  • 4. Irrational Numbers
Natural numbers are the counting numbersThe Lebombo Bone has 29 notchesZero became a formal operational numberIntegers are the set {The basic rules are a +

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Frequently Asked Questions

Where can I find CBSE Class 9 Mathematics Revision Notes?

This page provides revision notes for CBSE Class 9 Mathematics for the 2026 board exam. For chapter-by-chapter study help including summaries, quizzes, and flashcards, try Super Tutor.

Mathematics is one of the scoring subjects in CBSE Class 9 if prepared well. Focus on understanding concepts, practising problems regularly, and revising key formulas. Most students who follow a structured study plan score above 80%.

Start by understanding the complete syllabus. Then focus on important questions from each chapter. Use revision notes for quick review before exams. Follow a study plan that covers all chapters with dedicated revision time.

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8 chapters available

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