CBSE Class 10 Maths Deleted Syllabus 2026-27: Exercise Wise
CBSE Class 10 Maths Deleted Syllabus 2026–27 includes the chapters and exercises that the board has removed from the latest syllabus. Students do not need to study these deleted topics for the 2027 board exam.
CBSE has reduced the syllabus by 30% to help students focus on important concepts. The board has published the updated syllabus on its official website, cbseacademic.nic.in. This update clearly separates the included topics and deleted topics, which helps students avoid confusion.
The CBSE Class 10 Maths syllabus 2026–27 covers seven units. These units include Number Systems, Algebra, Coordinate Geometry, Geometry, Trigonometry, Mensuration, and Statistics and Probability. The board will not include deleted chapters or removed exercises in the exam.
This article provides a chapter-wise and exercise-wise list of deleted syllabus for CBSE Class 10 Maths 2026–27. It helps students skip removed topics, save time, and focus on scoring areas. Students can prepare with clarity and improve their results.
CBSE Deleted Syllabus of Class 10 Maths 2026-27
As we navigate the revised CBSE Class 10 Maths Syllabus for the academic year 2026-27, including the deleted syllabus of Class 10 Maths, it’s crucial to understand the specific topics that have been deleted from each chapter. These deletions are not arbitrary; they are carefully selected to streamline the curriculum and provide students with a more focused and enriching learning experience.
Let’s take a closer look at the deleted topics, along with the rationale behind each deletion. Below is a detailed list of the deleted topics for each chapter of the CBSE Class 10 Maths Syllabus 2026-27:
| Chapter | Topics Deleted | Deleted Page No. or Exercise No. |
| Real Numbers | Euclid’s division lemma, decimal representation of rational numbers in terms of terminating/non-terminating recurring decimals | Page No. 1-2, 9-10 |
| Polynomials | Statement and simple problems on division algorithm for polynomials with real coefficients | Page No. 35-36, Exercise 2.3 |
| Pair of Linear Equations in Two Variables | Simple problems on equations reducible to linear equations, Cross Multiplication Method | Page No. 61-62, Exercise 3.6 |
| Quadratic Equations | No Deletion | – |
| Arithmetic Progressions | No Deletion | – |
| Coordinate Geometry | Area of a triangle | Page No. 113, Exercise 7.4 |
| Triangles | Proof of the following theorems are deleted: If a perpendicular is drawn from the vertex of the right angle of a right triangle to the hypotenuse, the triangles on each side of the perpendicular are similar to the whole triangle and to each other. The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. In a right triangle, the square on the hypotenuse is equal to the sum of the squares on the other two sides. In a triangle, if the square on one side is equal to the sum of the squares on the other two sides, the angle opposite to the first side is a right angle. | Page No. 122-123, 128-129, 130-131, 132-133 |
| Circles | No Deletion | – |
| Constructions | Full Chapter Deleted | Page No. 144-149 |
| Introduction to Trigonometry | No Deletion | – |
| Trigonometric Identities | Trigonometric ratios of complementary angles | Page No. 174-175 |
| Heights and Distances | No Deletion | – |
| Areas Related to Circles | No Deletion | – |
| Surface Areas and Volumes | Frustum of a cone, problems involving converting one type of metallic solid into another, and other mixed problems (problems with a combination of not more than two different solids be taken) | Page No. 215-216, Exercise 13.5 |
| Statistics | Step Deviation Method for finding the mean Cumulative Frequency Graph | – |
| Probability | No Deletion | – |
Reason Behind CBSE Class 10 Maths Deleted Syllabus 2026-27
Each deletion from the CBSE Class 10 Maths syllabus for 2026-27, including the deleted syllabus of Class 10 Maths, has been carefully considered to create a more focused and manageable curriculum. By removing specific topics, CBSE aims to:
- Reduce Complexity: Eliminating certain theorems and processes from triangles, for example, helps simplify the curriculum, making it more accessible to students.
- Streamline Content: Deletions like the step deviation method in statistics, among others, allow for a more streamlined and efficient learning experience.
- Promote Conceptual Clarity: The removal of redundant or less essential topics permits students to focus on understanding the core concepts better.
These deletions are a step towards refining the CBSE Class 10 Maths curriculum, including the deleted syllabus, ensuring that students grasp fundamental concepts effectively, thus enhancing their overall mathematical knowledge.
Deleted Syllabus of Class 10 Maths Exercise-wise
| Chapter Name | Deleted Topics |
| Real Number | Euclid’s division lemma, Decimal representation of rational numbers as terminating or non-terminating recurring decimals. |
| Polynomials | Statements and simple problems on the division algorithm for polynomials with real coefficients. |
| Pair of Linear Equations in Two Variables | Simple problems on equations are reducible to linear equations. |
| Quadratic Equations | No Deletion |
| Arithmetic Progression | No Deletion |
| Coordinate Geometry | Area of Triangle |
| Triangle | The proof of the following theorems is removed: If a perpendicular is drawn from the vertex of a right angle to the hypotenuse of a right triangle, then the triangles on each side of the perpendicular are congruent to the whole triangle and similar to each other.The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. In a right-angled triangle, the square on the hypotenuse equals the sum of the squares on the other two sides.In a triangle, if the square of one side is equal to the sum of the squares of the other two sides, then the angles opposite to the first side are right angles. |
| Circles | No Deletion |
| Construction | Complete Chapter Deletion |
| Introduction to Trigonometry | No Deletion |
| Trigonometric Identities | Trigonometric ratios of complementary angles |
| Height and Distance | No Deletion |
| Area related to Circle | No Deletion |
| Surface Area and Volume | The frustum of a cone. Problems related to the conversion of one type of metallic solid to another and other mixed problems. (Problems involving the combination of more than two different solids to be taken). |
| Statistics | Step Deviation Method for finding the mean Cumulative Frequency graph |
| Probability | No Deletion |
Maths Latest Syllabus Class 10 Session 2026-27
Achieving a commendable score in the Class 10 Mathematics examination requires comprehensive coverage of the CBSE Class 10 Maths syllabus for the academic year 2026-27. This syllabus is meticulously structured, comprising seven units, each subdivided into various topics and subtopics. To facilitate a thorough understanding, let’s embark on a detailed exploration of the CBSE Class 10 Maths syllabus, considering the deleted syllabus, unit-wise and topic-wise.
| Unit No. | Unit Name | Marks |
| I. | Number System | 06 |
| II. | Algebra | 20 |
| III. | Coordinate Geometry | 06 |
| IV. | Geometry | 15 |
| V. | Trigonometry | 12 |
| VI. | Mensuration | 10 |
| VII. | Statistics and Probability | 11 |
| Total | Total Marks | 80 |
Study Tips for CBSE Class 10 Math Board Exam 2026-27
- Know the Syllabus and Weightage: Begin your preparation by thoroughly understanding the CBSE Class 10 Maths syllabus for 2026-27. Take note of the unit-wise weightage distribution, allowing you to allocate study time efficiently and prioritize topics accordingly.
- Refer to NCERT Textbooks: The CBSE Class 10 Maths curriculum prescribes the use of NCERT textbooks and resource materials. These resources are tailored to the curriculum, providing students with comprehensive and relevant content for effective preparation.
- Practice with NCERT Exercise Questions: Within the NCERT Math textbooks, you’ll find practice questions at the end of each chapter. These exercises are invaluable for practice and enhancing your conceptual clarity. Solving them not only reinforces your understanding but also boosts your potential to score 95+ marks in the CBSE Class 10 Maths exam.
- Solve CBSE Sample Papers: To excel in the CBSE Class 10 Maths board exam 2026, it’s essential to tackle CBSE’s sample question papers. These papers offer a clear insight into the exam’s question paper design, structure, and question types. Moreover, considering the curriculum modifications, practising with these sample papers is vital for understanding the actual exam format. Solving them and reviewing the solutions will serve as a guide for effective exam preparation.
Incorporating these study tips into your preparation regimen will not only enhance your grasp of the subject but also significantly improve your chances of achieving a top score in the upcoming CBSE Class 10 Math board exam.
Conclusion
As we wrap up our exploration of the CBSE Class 10 Maths curriculum for the academic year 2026-27, including the deleted syllabus of Class 10 Maths, it’s crucial to reflect on the key takeaways.
The CBSE’s decision to reduce the syllabus and exclude specific topics is a commendable effort to make the curriculum more manageable while encouraging a deeper understanding of fundamental concepts. In light of these changes, we’ve discussed essential study tips to ensure your success in the board exam.
Understanding the syllabus and unit-wise weightage is the foundation of effective preparation. This knowledge allows you to allocate your time wisely and focus on priority areas. NCERT textbooks remain the go-to resources, aligning perfectly with the curriculum and providing comprehensive content.
Practice is the key to mastery, and the exercise questions in the NCERT textbooks are invaluable for enhancing your understanding and scoring 95+ marks. Additionally, solving CBSE sample papers is non-negotiable, providing insights into question paper design and exam structure.
In conclusion, the 2026-27 academic year offers a chance to excel in mathematics and develop a profound appreciation for the subject. Stay committed, seek assistance when needed, and tackle the exam with confidence. Your journey through the CBSE Class 10 Maths curriculum is not just about acing an exam; it’s about building a solid foundation for future academic endeavors.
Check out other subjects deleted syllabus:
| CBSE Class 10 Hindi Deleted Syllabus | CBSE Class 10 Social Science Deleted Syllabus |
| CBSE Class 10 Science Deleted Syllabus | CBSE Class 10 English Deleted Syllabus |
FAQs on Deleted Syllabus of Class 10 Maths 2026-27
Q1. What is the benefit of the deleted syllabus of CBSE Class 10 Maths?
The deleted syllabus reduces the study load for students. It helps students focus on important maths topics. It supports better understanding and improves exam preparation. Students can study with more confidence and less stress.
Q2. What topics are removed from the CBSE Class 10 Maths syllabus 2026–27?
CBSE has removed selected topics from each unit. These include:
Number Systems: Division algorithm for polynomials
Algebra: Some problems based on reducible equations
Coordinate Geometry: Area of a triangle
Geometry: Selected proofs
Trigonometry: Trigonometric ratios of complementary angles
Mensuration: Frustum of a cone
Statistics: Selected concepts
These topics will not be part of the board exam.
Q3. How does the deleted syllabus of Class 10 Maths help students?
The reduced syllabus helps students manage time better. It allows more practice of exam-relevant chapters. Students can improve accuracy and score better marks with focused preparation.
Q4. Will the exam weightage change after the CBSE Class 10 Maths syllabus reduction?
CBSE may adjust marks within the remaining syllabus. The total exam marks remain the same. Students should follow the latest CBSE exam pattern and syllabus for correct preparation.
