CBSE Class 10 Maths Deleted Syllabus 2025-26: Check List of Deleted Topics and Subject Wise Deleted Syllabus

Study Abroad Specialist | Updated on - Sep 12, 2025

CBSE Class 10 Maths Deleted Syllabus 2025-26 is provided in this article. CBSE had revised and reduced CBSE Class 10 Maths Syllabus by 30% in 2024. Since then the CBSE Class 10 Maths Syllabus has remained unchanged. Students can download the revised syllabus from the official website cbseacademic.nic.in.

Download CBSE Class 10 Maths Deleted Syllabus PDF 2025-2026

CBSE Board will not use the deleted portion of CBSE Class 10 Maths Syllabus for assessment purposes in the academic year 2025-26. CBSE Class 10 Maths Syllabus for 2025-26 now consists of a total of seven units: Number Systems, Algebra, Coordinate Geometry, Geometry, Trigonometry, Mensuration, and Statistics and Probability. The syllabus is divided into two parts:

Part A is the theory part which has a weightage of 80 marks
Part B is the internal assessment part which has a weightage of 20 marks.

The passing marks for CBSE Class 10 Maths Exam are 33%. Before discussing the deleted syllabus, students must keep a copy of the recent CBSE 10th Maths syllabus to mark the topics which are no longer relevant.

Download CBSE Class 10 Maths Syllabus PDF 2025-2026

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CBSE Class 10 Maths Deleted Syllabus

CBSE Class 10 Maths Deleted Syllabus 2025-26

Below is the complete list of the deleted topics for each chapter of CBSE Class 10 Maths Syllabus 2025-26:

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	-

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NCERT Deleted Syllabus Class 10 Maths

Soon after the deletion of topics from the CBSE Class 10 Mathematics syllabus, the NCERT also revised the textbook content. These topics are no longer covered in the NCERT 10th Maths textbook.

Chapter	Page No.	Dropped Topics/Chapters
Chapter 1: Real Number	2–7 15–18	1.2 Euclid’s division lemma 1.5 Revisiting rational numbers and their decimal expansions
Chapter 2: Polynomials	33–37	2.4 Division algorithm for polynomials
Chapter 3:Pair of Linear Equations in Two Variables	39–46 57–69	3.2 Pair of linear equations in two variables 3.3 Graphical method of solution of a pair of linear equations3. 4.3 Cross-multiplication method 3.5 equation reducible to a pair of linear equations in two variables
Chapter 4: Quadratic Equations	76–88 91–92	4.4 Solution of a quadratic equation by completing the squares
Chapter6: Triangles	141–144 144–154	6.5 Areas of similar triangles 6.6 Pythagoras theorem
Chapter7: Coordinate Geometry	168–172	7.4 Area of a triangle
Chapter 8: Introduction to Trigonometry	87–190 193–194	8.4 Trigonometric ratios of complementary angles
Chapter 9: Some Applications of Trigonometry	195–196 205	9.1 Introduction
Chapter 11: Construction	216–222	11.1 Introduction 11.2 Division of a line segment 11.3 Construction of tangents to a circle 11.4 Summary
Chapter 12: Areas Related to Circles	223 224–226 231–238	12.1 Introduction 12.2 Perimeter and area of acircle- A review 12.4 Areas of combinations of plane figures
Chapter 13: Surface Areas and Volumes	248–252 252–259	13.4 Conversion of solid from one shape to another 13.5 Frustum of a cone
Chapter 14: Statistics	289–294	14.5 Graphical representation of cumulative frequency distribution
Chapter 15: Probability	295–296 311–312	15.1 Introduction Exercise 15.2 (Optional)

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CBSE Class 10 Maths Marking Scheme

Check the unit-wise marks distribution for CBSE Class 10 Maths from the table below:

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		80 Marks

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CBSE Class 10 Maths Question Paper Pattern 2025-26

The table below represents CBSE Class 10 Maths question paper pattern for the 2026 board exams:

Part	Section	Type of Questions	Number of Questions	Marks per Question	Total Marks
A	I	Objective Type (MCQs) Multiple choice questions with one correct option out of four given options. No negative markings for wrong answers.	20	1	20
A	II	Objective Type (Fill in the blanks, True/False, etc.) Fill in the blanks with appropriate words or numbers. State whether the given statements are true or false. No negative markings for wrong answers.	10	1	10
A	III	Very Short Answer Type (1-2 sentences) Answer the questions in one or two sentences. Use mathematical symbols and expressions wherever necessary. Show the steps of calculation clearly.	6	2	12
B	IV	Short Answer Type (3-4 sentences) Answer the questions in three or four sentences. Use mathematical symbols and expressions wherever necessary. Show the steps of calculation clearly. Give reasons or proofs for your answers if required.	7	3	21
B	V	Long Answer Type (5-6 sentences) Answer the questions in five or six sentences. Use mathematical symbols and expressions wherever necessary. Show the steps of calculation clearly. Give reasons or proofs for your answers if required. Draw diagrams or graphs if needed.	3	5	15
C	VI	Internal Assessment (Periodic Tests, Portfolio, Lab Activities, etc.) Periodic Tests: Three tests are conducted throughout the year, each carrying 10 marks. The average of the best two tests will be taken for final marks submission. Portfolio: A collection of student’s work and achievements in mathematics, such as projects, assignments, worksheets, etc., carrying 5 marks. Lab Activities: Practical work done by students in the mathematics laboratory, such as experiments, models, charts, etc., carrying 5 marks.	-	-	20

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CBSE Class 10 Maths Previous Years Papers

Download and practice CBSE Class 10 Maths previous years’ question papers from the links provided below:

Year	Previous Years Question Papers
2025	Check Class 10 Maths Question Paper
2024	Check Class 10 Maths Question Paper
2023	Check Class 10 Maths Question Paper
2022	Check Class 10 Maths Question Paper
2021	Exams cancelled due to pandemic
2020	Check Class 10 Maths Question Paper

Check CBSE Class 10 Sample Papers 2025-26

Frequently Asked Questions

Ques. How will the deletion of topics affect my preparation for CBSE Class 10 Maths Exam 2026?

Ans. The deletion of topics will reduce your syllabus and make your preparation easier. However, you should not ignore or skip any topic that has been deleted from the syllabus as it may be useful for your conceptual understanding and future learning. You should also follow the latest CBSE Class 10 Maths Sample Papers and Marking Scheme to get familiar with the exam pattern and question types.

Ques. Will there be any change in the difficulty level or weightage of questions in the CBSE Class 10 Maths Exam 2026 due to the deletion of topics?

Ans. No, there will be no change in the difficulty level or weightage of questions in CBSE Class 10 Maths Board Exam due to the deletion of topics. The questions will be based on the revised syllabus and will cover all aspects of learning outcomes. The exam pattern and marking scheme will also remain unchanged.

Ques. How are the marks distributed for CBSE Class 10 Maths Exam 2026?

Ans. For CBSE Class 10 Maths exam, the theory paper will have a weightage of 80 marks and will consist of two parts: Part A and Part B.

Part A will have three sections: Section I (Objective Type MCQs), Section II (Objective Type Fill in blanks/True False, etc.), and Section III (Very Short Answer Type).
Part B will have two sections: Section IV (Short Answer Type) and Section V (Long Answer Type).

The internal assessment will have a weightage of 20 marks and will consist of three components: Periodic Tests, Portfolio, and Lab Activities.

Ques. Is NCERT book sufficient for preparing CBSE Class 10 Maths Syllabus 2025-26?

Ans. For CBSE board exam preparation, NCERT is the best book as all the questions in the final exams will be asked from the concepts included in NCERT only. Sometimes, questions are directly taken from the NCERT book. However, students should also consider other reference books like RD Sharma for their preparation. Reference books will give you an idea of all the types of questions that can be asked from a chapter.

Ques. Will there be any change in the internal assessment or practical component of CBSE Class 10 Maths due to the deletion of topics?

Ans. No, there will be no change in the internal assessment or practical component of CBSE Class 10 Maths due to the deletion of topics. The internal assessment will consist of periodic tests, portfolios, and lab activities, carrying a total of 20 marks.