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CBSE Class 10 · Mathematics · 2025-26

CBSE Class 10 Mathematics Syllabus 2025-26

Official chapter-wise syllabus for CBSE Class 10 Mathematics — unit-wise marks distribution, list of deleted/reduced topics, and the 2025-26 exam paper pattern. Use this page alongside the Class 10 Mathematics preparation guide for full exam readiness.

2025-26

Academic Year

Theory Marks

Practical Marks

Total Chapters

Unit-Wise Marks Distribution

80 marks (theory)

Unit I: Number Systems

Real Numbers

8% of theory marks

Unit II: Algebra

Polynomials · Pair of Linear Equations in Two Variables · Quadratic Equations · Arithmetic Progressions

20M

25% of theory marks

Unit III: Coordinate Geometry

Coordinate Geometry

8% of theory marks

Unit IV: Geometry

Triangles · Circles

15M

19% of theory marks

Unit V: Trigonometry

Introduction to Trigonometry · Some Applications of Trigonometry

12M

15% of theory marks

Unit VI: Mensuration

Areas Related to Circles · Surface Areas and Volumes

10M

13% of theory marks

Unit VII: Statistics & Probability

Statistics · Probability

11M

14% of theory marks

Chapter-Wise Syllabus

12 chapters

#	Chapter	Marks	Key Topics
1	Real Numbers	6	Euclid's Division Lemma · Fundamental Theorem of Arithmetic · Irrational Numbers
2	Polynomials	6	Zeros of Polynomials · Relationship between Zeros and Coefficients · Division Algorithm
3	Pair of Linear Equations	8	Graphical Method · Substitution Method · Elimination Method · Cross Multiplication
4	Quadratic Equations	8	Factorisation · Completing the Square · Discriminant · Nature of Roots
5	Arithmetic Progressions	5	nth Term · Sum of n Terms · Finding Common Difference
6	Triangles	6	Basic Proportionality Theorem · AA/SSS/SAS Similarity · Pythagoras Theorem
7	Coordinate Geometry	6	Distance Formula · Section Formula · Area of Triangle
8	Trigonometry & Applications	12	Trigonometric Ratios · Trigonometric Identities · Heights and Distances
9	Circles	5	Tangent to a Circle · Number of Tangents from External Point
10	Surface Area & Volume	10	Cone, Cylinder, Sphere · Frustum of Cone · Combination of Solids
11	Statistics	7	Mean · Median · Mode · Cumulative Frequency
12	Probability	4	Classical Probability · Equally Likely Outcomes

Deleted / Reduced Topics 2025-26

Note: The following topics have been deleted or reduced from the CBSE Class 10 Mathematics syllabus. Do not spend time studying these for the 2025-26 board exam. Always verify with the official CBSE syllabus document before your exam.

✗

Real Numbers

Euclid's division algorithm (proofs)

✗

Polynomials

Proofs of relationship between zeroes and coefficients

✗

Triangles

Proof of Basic Proportionality Theorem

✗

Areas Related to Circles

Areas of combinations of plane figures (complex problems)

Exam Paper Pattern 2025-26

80 marks total

Section	Question Type	Marks/Q	Count	Total
Section A	MCQ / Assertion-Reason	1	20	20
Section B	Very Short Answer (VSA)	2	5	10
Section C	Short Answer (SA)	3	6	18
Section D	Long Answer (LA)	5	4	20
Section E	Case Study / Source Based	4	3	12
Total Theory Marks				80

Practical / Internal Assessment Marks — assessed throughout the year by your school (projects, lab work, notebooks).

How to Use This Syllabus

Prioritise by marks

Use the unit-wise distribution above. Focus first on units with 20+ marks — they give the best return on study time.

Skip deleted topics

CBSE will not ask deleted topics in the board exam. Don't waste time on them — use that time for NCERT exercises instead.

Know the paper pattern

Section E (Case Study) has new-format questions many students ignore. Practise these separately — they're easy marks.

From syllabus to practice

You know the syllabus. Now practise it.

ClearSteps gives you chapter-wise mock tests aligned to the exact CBSE Class 10 Mathematics syllabus, with AI evaluation against the official marking scheme.

Start Practising Free →View Preparation Guide