Students must check the CBSE Class 10 Maths Deleted Syllabus and review the removed topics from chapters to prepare properly for the board exam. The CBSE board has reduced 30% of the class 10 syllabus for Mathematics.
Table of Contents
- Class 10 NCERT Deleted Syllabus For Maths 2025-26
- CBSE Class 10 Maths Deleted Syllabus Chapter-Wise 2025-26
- CBSE Class 10 Maths Deleted Syllabus 2025-26 Direct Link: PDF Download
- Topic-Wise CBSE Class 10 Maths Marking Scheme 2025-26
- Updated CBSE Class 10 Maths Syllabus 2025-26 PDF
- CBSE Class 10th Question Paper Pattern 2025-26 For Maths
- Reasons Behind CBSE Class 10 Maths Deleted Syllabus 2025-26
- Benefits of the Deleted Syllabus of Class 10 Maths Exercise-wise
The Central Board of Secondary Education (CBSE) has reduced the official Mathematics syllabus by 30%. While many topics have been removed from approximately 10 chapters, some entire chapters have also been removed from the syllabus. These chapters include real numbers, the area of triangles, proof of some theorems, and more. This reduction aims to alleviate the burden and help you focus more on the practical application of the concepts learnt.
The updated PDF of the CBSE class 10 Maths Deleted Syllabus 2026 is available on the official website of the CBSE, and we have updated the same below for an easier reference. You must ensure to check the updated syllabus to avoid errors and loss of marks. The CBSE Class 10 Board Exam 2026 syllabus for Maths has been updated to promote critical thinking and focused learning.
Class 10 NCERT Deleted Syllabus For Maths 2025-26
The board has revised and published the NCERT textbooks for Mathematics, curated as per the updated syllabus. You must review the CBSE class 10 books for Mathematics and check the revised textbook content in-depth for a comprehensive understanding of the curriculum.
| Chapter |
Deleted Topics of Maths Class 10 CBSE 2025-26
|
| Real Numbers |
Euclid’s division lemma, the decimal representation of rational numbers in terms of terminating/non-terminating recurring decimals
|
| Polynomials |
Statement and simple problems on the division algorithm for polynomials with real coefficients
|
| Pair of Linear Equations in Two Variables |
Simple problems on equations reducible to linear equations, Cross Multiplication Method
|
| Quadratic Equations | No Deletion |
| Arithmetic Progressions | No Deletion |
| Coordinate Geometry |
Area of a triangle
|
| Triangles |
Proof of the following theorems is deleted:
The triangles on either side of a perpendicular are identical to the triangle as a whole and to one another when the perpendicular is traced from the vertex of a right triangle to the hypotenuse. The ratio of the squares of the identical sides of two comparable triangles equals the ratio of their areas. The square on the hypotenuse of a right triangle equals the sum of the squares on the other two sides. The angle opposite the first side of a triangle is a right angle if the square on one side equals the sum of the squares on the other two sides. |
| Circles | No Deletion |
| Constructions |
Full Chapter Deleted
|
| Introduction to Trigonometry | No Deletion |
| Trigonometric Identities |
Trigonometric ratios of complementary angles
|
| Heights and Distances | No Deletion |
| Areas Related to Circles | No Deletion |
| Surface Areas and Volumes |
Cone frostium, issues transforming one kind of metallic solid into another, and other mixed issues (i.e., issues combining no more than two distinct
solids) |
| Statistics |
Step Deviation Method for finding the mean, Cumulative Frequency Graph
|
| Probability | No Deletion |
CBSE Class 10 Maths Deleted Syllabus Chapter-Wise 2025-26
This table contains the CBSE class 10th Maths deleted syllabus 2025-26:
| Chapters | Dropped Topics | Page Number |
| Real Number | 1.2 - Euclid’s division lemma | 2–7 |
| 1.5 - Revisiting rational numbers and their decimal expansions | 15–18 | |
| Polynomials | 2.4 - Division algorithm for polynomials | 33–37 |
| Pair of Linear Equations in Two Variables | 3.2 - Pair of linear equations in two variables | 39–46 |
| 3.3 - Graphical method of solution of a pair of linear equations. | 57–69 | |
| 4.3 - Cross-multiplication method | ||
| 3.5 - equation reducible to a pair of linear equations in two variables | ||
| Chapter 4: Quadratic Equations | 4.4 - Solution of a quadratic equation by completing the squares | 76–88, 91–92 |
| Triangles | 6.5 - Areas of similar triangles | 141–144 |
| 6.6 - Pythagoras theorem | 144–154 | |
| Coordinate Geometry | 7.4 - Area of a triangle | 168–172 |
| Introduction to Trigonometry | 8.4 - Trigonometric ratios of complementary angles | 87–190, 193–194 |
| Some Applications of Trigonometry | 9.1 - Introduction | 195–196, 205 |
| Construction | 11.1 - Introduction | 216–222 |
| 11.2 - Division of a line segment | ||
| 11.3 - Construction of tangents to a circle | ||
| 11.4 - Summary | ||
| Areas Related to Circles | 12.1 - Introduction | 223 |
| 12.2 - Perimeter and area of a circle- A review | 224–226 | |
| 12.4 - Areas of combinations of plane figures | 231–238 | |
| Surface Areas and Volumes | 13.4 - Conversion of a solid from one shape to another | 248–252 |
| 13.5 - Frustum of a cone | 252–259 | |
| Statistics | 14.5 - Graphical representation of cumulative frequency distribution | 289–294 |
| Probability | 15.1 - Introduction Exercise | 295–296 |
| 15.2 - (Optional) | 311–312 |
CBSE Class 10 Maths Deleted Syllabus 2025-26 Direct Link: PDF Download
While the CBSE Class 10 Maths deleted syllabus 2025-26 is available online on the official CBSE website, the PDF for the same is tabulated below for ease of reference.
| Particulars | Details |
| CBSE Class 10 Maths Deleted Syllabus 2025-26 PDF | Download Here |
Topic-Wise CBSE Class 10 Maths Marking Scheme 2025-26
As per the CBSE 12th Exam Pattern 2026 for class 10, 80 marks are assigned for the theory exam, out of which questions from Algebra and Geometry weigh the most. The table below suggests the topic-wise marks weightage after alterations from the Maths class 10 deleted syllabus 2025-26.
| Name | Marks |
| Number System | 6 |
| Algebra | 20 |
| Coordinate Geometry | 6 |
| Geometry | 15 |
| Trigonometry | 12 |
| Mensuration | 10 |
| Statistics and Probability | 11 |
| Total | 80 |
The internal assessment contains 20 marks in the CBSE class 10 exam. The CBSE class 10 exam pattern of Mathematics for the internal assessment is shown below.
| Name | Marks |
| Pen Paper Test and Multiple Assessment | 10 |
| Portfolio | 5 |
| Lab Practical | 5 |
Also Check: CBSE Important Questions for Class 10th Maths (Chapter Wise)
Updated CBSE Class 10 Maths Syllabus 2025-26 PDF
The syllabus for CBSE Class 10 Mathematics exams has been updated to include unit-wise chapters, topics, and project work that students will be assessed on. The revised CBSE class 10 syllabus for Maths contains all the chapters, as mentioned in the CBSE Class 10 Maths deleted portions, and the same is provided in the table below.
| Class 10 CBSE Maths Syllabus 2025-26 PDF |
CBSE Class 10th Question Paper Pattern 2025-26 For Maths
The CBSE class 10 exam will contain objective, subjective, and case-based questions, weighing different marks. You can practice the CBSE class 10 question bank to get deep insight into the marking scheme and question pattern. You must look at the detailed CBSE class 10 question paper pattern to thoroughly understand the question types in the class 10th exam.
Also Check: CBSE Class 10 Sample Papers
Reasons Behind CBSE Class 10 Maths Deleted Syllabus 2025-26
The new guidelines for CBSE class 10 students are now available along with the revised syllabus. The reasons behind the CBSE class 10 Maths deleted syllabus 2025-26 are mentioned below.
- The restructuring of the Math syllabus focuses on concept learning and formulas.
- Authorities decided to eliminate a few chapters from the class 10 Maths deleted syllabus 2025-26 so that the difficulty level of the paper is revised.
- The deleted syllabus of class 10 Maths 2025-26 aims to teach a more self-learning approach.
- Moreover, authorities have excluded outdated topics from chapters.
Benefits of the Deleted Syllabus of Class 10 Maths Exercise-wise
You must review the updated syllabus, which will help them with the CBSE class 10 preparations. With the rationalisation through the CBSE Class 10 maths syllabus 2025-26 deleted portion, you can grasp concepts taught in classes 11 and 12 much quicker, as it provides a strong foundation and holds on to the subject.
Other than that, some key benefits of the Class 10 Maths deleted syllabus 2025-26 are mentioned below.
- The deleted syllabus of class 10 maths exercise-wise 2025-26 contains topics that made the earlier syllabus more rigid, but now, it is more flexible and easier to understand.
- Productivity will increase tenfold as the existing syllabus focuses on essential topics and concepts.
- With the implementation of the CBSE class 10 maths deleted syllabus 2025-26, you can now score more in the Board exams.
- You will be able to save time by focusing on essential chapters.
- Deletion of chapters will also lead to a boost in your confidence level.
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