CBSE Class 10 Maths Syllabus 2026-27
Subject Code: 041 & 241 | Academic Year: 2026-27
The CBSE Class 10 Mathematics curriculum for 2026-27 has been redesigned in alignment with the National Education Policy 2020 and the National Curriculum Framework for School Education (NCF-SE) 2023. It prioritises deep conceptual understanding, logical reasoning, and real-life application over rote learning. The syllabus covers seven units spanning number theory, algebra, geometry, trigonometry, mensuration, and statistics — building a strong foundation for Class 11–12 and competitive exams.
Topics Removed for 2026-27
The unit-wise syllabus below already excludes these — CBSE's rationalised syllabus dropped:
- The full Constructions chapter
- Euclid's Division Lemma and the decimal-representation discussion (Real Numbers)
- The division algorithm for polynomials (Polynomials)
- Area of a triangle using coordinates (Coordinate Geometry)
- Cumulative frequency distribution / ogives (Statistics)
Marks Distribution
| Unit | Unit Name | Marks |
|---|---|---|
| I | Number Systems | 6 |
| II | Algebra | 20 |
| III | Coordinate Geometry | 6 |
| IV | Geometry | 15 |
| V | Trigonometry | 12 |
| VI | Mensuration | 10 |
| VII | Statistics and Probability | 11 |
| Theory Total | 80 | |
| Internal Assessment | 20 | |
| Grand Total | 100 | |
Internal Assessment: Periodic Assessments (10) + Portfolio (5) + Student Enrichment Activities (5)
Unit-wise Syllabus
Unit I: Number Systems
6 marks- Fundamental Theorem of Arithmetic — finding HCF and LCM
- Proofs of irrationality of √2, √3, √5
Unit II: Algebra
20 marks- Polynomials — zeros, relationship between zeros and coefficients
- Pair of Linear Equations in Two Variables — graphical and algebraic methods
- Quadratic Equations — standard form, factorisation, quadratic formula, nature of roots
- Arithmetic Progressions — nth term, sum of n terms, real-life applications
Unit III: Coordinate Geometry
6 marks- Distance formula
- Section formula (internal division)
Unit IV: Geometry
15 marks- Triangles — similarity criteria (AA, SAS, SSS), BPT theorem, Pythagoras theorem
- Circles — tangent to a circle, number of tangents from an external point
Unit V: Trigonometry
12 marks- Introduction to Trigonometry — sin, cos, tan and reciprocals for standard angles
- Trigonometric Identities — sin²A + cos²A = 1 and related identities
- Heights and Distances — angle of elevation and depression, real-life problems
Unit VI: Mensuration
10 marks- Areas Related to Circles — area of sector, area of segment
- Surface Areas and Volumes — combinations of solids (cone + hemisphere, cylinder + cone, etc.)
Unit VII: Statistics and Probability
11 marks- Statistics — mean, median, mode of grouped data
- Probability — classical definition, simple problems based on single events
Exam Pattern
| Component | Details | Marks |
|---|---|---|
| Board Exam (Theory) | 3 hours, 80 marks paper | 80 |
| Periodic Assessments | Best of 3 tests conducted by school | 10 |
| Portfolio | Classwork, worksheets, assignments | 5 |
| Student Enrichment Activities | Mathematical lab activities | 5 |
Question paper pattern: Section A (MCQs & 1-mark), Section B (2-mark), Section C (3-mark), Section D (5-mark), Section E (case-based 4-mark).
Recommended Reference Books
- ★Mathematics Class X — NCERT (primary textbook, must-read for every chapter)
- ★Mathematics Exemplar Problems Class X — NCERT (higher-order thinking questions)
- ★RD Sharma Mathematics for Class 10 — extensive practice, chapter-wise exercises
- ★RS Aggarwal Mathematics for Class 10 — board-style problems and solutions
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Book Free Demo Class →Frequently Asked Questions
How many units are in CBSE Class 10 Maths syllabus 2026-27?▾
There are 7 units: Number Systems, Algebra, Coordinate Geometry, Geometry, Trigonometry, Mensuration, and Statistics & Probability.
What is the total marks for CBSE Class 10 Maths?▾
80 marks for the theory exam plus 20 marks for internal assessment, totalling 100 marks.
Which unit carries the most marks in CBSE Class 10 Maths?▾
Algebra carries the highest marks (20 marks) followed by Geometry (15 marks) and Trigonometry (12 marks).
Is Calculus part of CBSE Class 10 Maths?▾
No, Calculus is not included in Class 10. It is introduced in Class 11 (Limits and Derivatives) and studied in depth in Class 12.
Is Euclid's Division Lemma still in the CBSE Class 10 Maths syllabus for 2026-27?▾
No. Euclid's Division Lemma was removed from the Real Numbers chapter in the CBSE rationalised syllabus. The chapter now focuses on the Fundamental Theorem of Arithmetic for finding HCF and LCM, and the proofs of irrationality of √2, √3 and √5.
What topics were deleted from CBSE Class 10 Maths for 2026-27?▾
The full Constructions chapter was removed. Within other chapters: Euclid's Division Lemma and the decimal-representation discussion (Real Numbers), the division algorithm for polynomials (Polynomials), area of a triangle using coordinates (Coordinate Geometry), and cumulative frequency distribution / ogives (Statistics) were all removed.
What are the best reference books for CBSE Class 10 Maths?▾
The recommended books are NCERT Mathematics Class X (primary), NCERT Exemplar Problems, RD Sharma Mathematics Class 10, and RS Aggarwal Mathematics Class 10.
How many marks does internal assessment carry in CBSE Class 10 Maths?▾
Internal assessment carries 20 marks, split across periodic assessments (10 marks), portfolio (5 marks), and student enrichment activities (5 marks).