In the past 2-3 years, the CBSE Class 9 Syllabus for Mathematics has undergone significant reduction. The syllabus has been carefully modified, eliminating certain portions permanently to streamline the course curriculum for students. This reduction in syllabus has brought relief to students, making exam preparations more manageable.
To ensure that students are well-informed about the changes, it is crucial for them to have a comprehensive understanding of the deleted syllabus. To assist students in this regard, we have compiled a detailed list of the chapters and topics that have been removed from the CBSE Class 9 Maths Syllabus.
By referring to the CBSE Class 9 Maths Deleted Syllabus provided below, students can easily access the chapter-wise list of topics and exercises that are no longer a part of the current academic session, 2023-24. It is essential for students to be aware of these changes and align their exam preparations accordingly.
CBSE Class 9 Maths Deleted Syllabus 2023-24: Check the list of chapter-wise topics removed from syllabus below:
| Chapter | Topics |
| Real Numbers | Representation of terminating / non-terminating recurring decimals on the number line through successive magnification. |
| Linear Equations In Two Variables | Being written as ordered pairs of realnumbers, plotting them and showing that they lie on a line. Graph of linear equations in twovariables. Examples, problems from real life, including problems on Ratio and Proportionand with algebraic and graphical solutions being done simultaneously. |
| Coordinate Geometry | Plotting points in the plane. |
| Introduction To Euclid’S Geometry | Equivalent versions of the fifth postulate of Euclid. |
| Lines And Angles | (Prove) The sum of the angles of a triangle is 180O.(Motivate) If a side of a triangle is produced, the exterior angle so formed is equal to the sum of the two interior opposite angles. |
| Triangles | (Motivate) Triangle inequalities and relation between ‘angle and facing side’ inequalities in triangles. |
| Areas Of Parallelogram And Triangles | Full Chapter Deleted |
| Circles | (Motivate) There is one and only one circle passing through three given non-collinear points. |
| Constructions | Full Chapter Deleted |
| Heron’s Formula | Application of Heron’s Formula in finding the area of a quadrilateral. |
| Surface Areas And Volumes | Surface areas and volumes of cubes, cuboids and right circular cylinders. |
| Statistics | Introduction to Statistics: Collection of data, presentation of data — tabular form, ungrouped / grouped.Mean, median and mode of ungrouped data. |
| Probability |
CBSE Class 9 Maths Deleted Syllabus 2023-24: Check deleted exercises from NCERT Class 9 Maths Book below:
| Chapter | Page No. | Dropped Topics/Chapter |
| Chapter 1: Number Systems | 15–1827 | 1.4 Representing real numbers on the number line |
| Chapter 2: Polynomials | 35–4050 | 2.4 Remainder theorem |
| Chapter 3: Coordinate Geometry | 61–65 | 3.3 Plotting a point in the plane if its coordinates are given |
| Chapter 4: Linear Equations in Two Variables | 70–75 | 4.4 Graph of linear equations in two variables |
| 75–77 | 4.5 Equations of lines parallel–x–axis and y–axis | |
| Chapter 5: Introduction– Euclidean Geometry | 86–88 | 5.3 Equivalent versions of Euclid’s fifth postulate |
| Chapter 6: Lines and Angles | 98–100103105–108 | 6.5 Parallel lines and a transversal6.7 Angle sum property of a triangle |
| Chapter 7: Triangles | 129–134 | 7.6 Inequalities in triangles |
| Chapter 8: Quadrilaterals | 135–138 | 8.1 Introduction8.2 Angle sum property of a quadrilateral |
| 145–147 151 | 8.3 Types of quadrilaterals8.5 Another condition for a Quadrilateral–be a parallelogram | |
| Chapter 9: Areas of Parallelogram and Triangles | 152–167 | Full chapter |
| Chapter 10: Circles | 168 | 10.1 Introduction |
| 169–171 | 10.2 Circles and its related terms: Review | |
| 174–176186–187 | Circle through three points | |
| Chapter 11: Construction | 188–196 | Full chapter |
| Chapter 12: Heron’s Formula | 197–199203–207 | 12.1 Introduction12.3 Application of Heron’s formula in finding areas of quadrilaterals |
| Chapter 13: Surface Area and Volume | 208–217 | 13.1 Introduction13.2 Surface area of a cuboid and cube |
| 226–231 | 13.3 Surface area of right circular cylinder | |
| 236–237 | 13.6 Volume of cuboid13.7 Volume of cylinder | |
| Chapter 14: Statistics | 238–246261–270 | 14.1 Introduction14.2 Collection of data14.3 Presentation of data14.5 Measure of central tendency14.6 Summary |
| Chapter 15: Probability | 271–285 | Full chapter |
| Answers | 326328330–345347 | Answers of Exercise |