CBSE Class 10 Maths Syllabus 2025–26 : Chapter-wise Marking Scheme, Weightage & PDF

📘 CBSE Class 10 Maths Syllabus 2025–26

Presented by Anand Classes

At Anand Classes, we believe that a clear understanding of the syllabus is the first step toward academic excellence. The CBSE Class 10 Maths Syllabus 2025–26 has been carefully structured by the Central Board of Secondary Education to enhance students’ analytical skills, problem-solving abilities, and mathematical reasoning.

This updated syllabus emphasizes practical application, logical understanding, and the use of algebraic methods to solve real-world problems. It includes vital concepts from Number Systems, Algebra, Geometry, Trigonometry, Mensuration, Coordinate Geometry, and Statistics & Probability, each designed to strengthen the core mathematical foundation.

With 80 marks allocated for theory and 20 marks for internal assessment, this curriculum not only prepares students for board exams but also builds a strong base for competitive exams like JEE, NEET, and NDA.

At Anand Classes, we provide:

• Detailed explanations for each unit
• Chapter-wise worksheets and mock tests
• Concept-building sessions and doubt-clearing support
• Tips and tricks to master board-level problem-solving

Let’s dive deep into the syllabus and prepare smartly for success with Anand Classes!

Maths Class 10 : Chapters and Their Detailed Content

• Introduction to Trigonometry
• Polynomials

Here’s a detailed explanation of the CBSE Class 10 Maths Syllabus 2025–26, broken down unit-wise as per the latest curriculum guidelines:

🔷 CBSE Class 10 Maths Syllabus 2025–26 (Detailed Explanation) With Marking Scheme

The syllabus is divided into 7 main units. It focuses on helping students develop algebraic thinking, spatial reasoning, understanding of geometrical figures, trigonometric applications, and data interpretation skills.

📘 Unit I: Number Systems (6 Marks)

Topic: Real Numbers

• Fundamental Theorem of Arithmetic: Every composite number can be expressed uniquely as a product of prime numbers (excluding the order).
• Irrational Numbers: Proofs of the irrationality of √2, √3, √5.
• Students understand the distinction between rational and irrational numbers and their decimal expansions.

🟠 Deleted:

• Euclid’s Division Lemma
• Decimal representation of rational numbers (terminating and recurring)

📘 Unit II: Algebra (20 Marks)

1. Polynomials

• Zeros of a polynomial.
• Relationship between zeros and coefficients of quadratic polynomials.

2. Pair of Linear Equations in Two Variables

• Graphical method of solution.
• Algebraic methods: Substitution and Elimination.
• Conditions for consistency.
• Simple word problems.

🟠 Deleted:

• Equations reducible to linear form.

3. Quadratic Equations

• Standard form: ax2+bx+c=0ax^2 + bx + c = 0
• Solution by factorisation and quadratic formula.
• Discriminant and nature of roots.
• Real-life situational problems.

4. Arithmetic Progressions

• nth term of an A.P.
• Sum of the first n terms.
• Application-based problems.

🟢 Skills Developed:

• Logical reasoning
• Real-life mathematical modelling

📘 Unit III: Coordinate Geometry (6 Marks)

Concepts:

• Cartesian plane, plotting a point
• Distance Formula
• Section Formula (internal division)

🟠 Deleted:

• Area of triangle formed by coordinates.

📘 Unit IV: Geometry (15 Marks)

1. Triangles

• Similar triangles: Basic proportionality theorem and converse.
• Criteria for similarity of triangles.
• Applications in solving geometrical problems.

2. Circles

• Tangent to a circle: Point of contact.
• Theorem: Tangents drawn from an external point are equal.

🟠 Deleted:

• Many theorems such as Pythagoras Theorem, similarity proofs, etc.

📘 Unit V: Trigonometry (12 Marks)

1. Introduction to Trigonometry

• Definition of trigonometric ratios using a right triangle.
• Ratios for 0°, 30°, 45°, 60°, 90°.
• Inter-relationships between the ratios.

2. Trigonometric Identities

• Identity: sin⁡2A+cos⁡2A=1\sin^2A + \cos^2A = 1
• Simple applications.

3. Heights and Distances

• Problems using angles of elevation and depression.
• Limited to two right-angled triangles.
• Angles: 30°, 45°, 60°

🟠 Deleted:

• Complementary angle identities.

📘 Unit VI: Mensuration (10 Marks)

1. Areas Related to Circles

• Area and perimeter of sectors and segments.
• Central angles: 60°, 90°, and 120° only.

2. Surface Areas and Volumes

• Problems on: Cubes, cuboids, cones, cylinders, spheres, hemispheres.
• Problems limited to a combination of two solids.

🟠 Deleted:

• Frustum of a cone
• Mixed conversion problems
• Metallic solid problems

📘 Unit VII: Statistics and Probability (11 Marks)

1. Statistics

• Mean of grouped data using Direct Method only.
• Representation via histograms and frequency polygons.

2. Probability

• Classical definition of probability.
• Simple problems based on single events (e.g., dice, coins, cards).

🟠 Deleted:

• Step-deviation method
• Cumulative frequency graphs

📄 Internal Assessment (20 Marks)

📝 Question Paper Design (80 Marks)

🔴 Deleted Chapters/Topics (Summary)

• Euclid’s Division Lemma
• Division algorithm for polynomials
• Proofs of many theorems in geometry
• Frustum & complex surface area problems
• Step-deviation method in statistics
• Complementary angle trigonometric identities
• Full chapter on Constructions

🎯 Objectives of the Syllabus

• Develop a logical, critical, and creative mathematical mindset.
• Enhance understanding of visualisation, algebraic skills, and measurement.
• Use mathematics in real-life situations.
• Prepare for higher-level problem-solving.

📘 FAQs – CBSE Class 10 Maths Syllabus 2025–26

❓Q1. What are the major units covered in CBSE Class 10 Maths?

Ans: The syllabus is divided into 7 units:

1. Number Systems
2. Algebra
3. Coordinate Geometry
4. Geometry
5. Trigonometry
6. Mensuration
7. Statistics and Probability

❓Q2. Has the CBSE made any changes in the 2025–26 Maths syllabus?

Ans: Yes, CBSE has reduced and rationalised some topics. For example, Euclid’s Division Lemma, Area of triangle using coordinates, and Step-Deviation method have been removed.

❓Q3. Are there any full chapters deleted from the syllabus?

Ans: Yes, the full chapter on Constructions has been completely deleted.

❓Q4. What are the key topics deleted from Geometry?

Ans: Some important theorems have been removed, including:

• Proof of the Pythagoras Theorem
• Proofs related to similar triangles
• Area of triangle using coordinate formula

❓Q5. What is the total mark distribution in CBSE Class 10 Maths?

Ans:

• Theory Exam: 80 Marks
• Internal Assessment: 20 Marks
  Total: 100 Marks

❓Q6. Is Trigonometry still part of the syllabus?

Ans: Yes, Trigonometry is still part of the syllabus. It includes:

• Trigonometric Ratios
• Trigonometric Identities
• Heights and Distances (30°, 45°, 60° angles only)

❓Q7. Are there any changes in Mensuration?

Ans: Yes. The concept of the frustum of a cone has been deleted. Only surface area and volume of standard solids and their simple combinations are included.

❓Q8. Which methods are allowed to calculate the mean in Statistics?

Ans: Only the Direct Method is included. The Assumed Mean and Step-Deviation Method are excluded.

❓Q9. What kind of problems are included in Probability?

Ans: Simple problems based on:

• Coins
• Dice
• Playing Cards
  The classical definition of probability is used, with focus on single-event problems only.

❓Q10. What is the focus of Internal Assessment?

Ans: Internal Assessment includes:

• Periodic Tests
• Multiple Assessments (oral, quiz, projects)
• Mathematics Lab Activities (as per NCERT)
• Portfolio (classwork, homework, projects)

❓Q11. Are graphs and construction still part of the syllabus?

Ans: Graphs like linear equations, frequency polygons, and histograms are part of the syllabus. But the Constructions chapter has been fully removed.

❓Q12. Is there any change in how the exam paper will be set?

Ans: Yes. The question paper will focus more on:

• Conceptual Understanding (75%)
• Application & HOTS (25%)

❓Q13. How many marks are allotted to Algebra?

Ans: 20 Marks are allotted to Algebra, which includes:

• Polynomials
• Linear Equations
• Quadratic Equations
• Arithmetic Progressions

❓Q14. Is coordinate geometry simplified in the new syllabus?

Ans: Yes. Only Distance Formula and Section Formula (internal division) are included. Area of triangle using coordinates has been deleted.

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