CBSE Class 10 Maths chapter-wise weightage 2027
How the board shares out the 80 theory marks of the 2027 Class 10 Maths exam, unit by unit, with the chapters in each unit. From CBSE's 2026-27 curriculum, checked on 2026-11-10.
| Unit | Chapters | Marks | Share |
|---|---|---|---|
| Number Systems | 1. Real Numbers | 6 | 8% |
| Algebra | 2. Polynomials 3. Pair of Linear Equations in Two Variables 4. Quadratic Equations 5. Arithmetic Progressions | 20 | 25% |
| Coordinate Geometry | 7. Coordinate Geometry | 6 | 8% |
| Geometry | 6. Triangles 10. Circles | 15 | 19% |
| Trigonometry | 8. Introduction to Trigonometry 9. Some Applications of Trigonometry | 12 | 15% |
| Mensuration | 11. Areas Related to Circles 12. Surface Areas and Volumes | 10 | 13% |
| Statistics and Probability | 13. Statistics 14. Probability | 11 | 14% |
| Total | 80 | 100% |
Plus 20 marks for internal assessment. Where a unit has more than one chapter, the board gives marks to the unit, not to each chapter.
Where the marks are
The paper: 38 questions, 80 marks, 3 hours
| Section | Questions | How many | Marks each | Total |
|---|---|---|---|---|
| Section A | Multiple-choice and assertion-reason | 20 | 1 | 20 |
| Section B | Very short answer | 5 | 2 | 10 |
| Section C | Short answer | 6 | 3 | 18 |
| Section D | Long answer | 4 | 5 | 20 |
| Section E | Case study | 3 | 4 | 12 |
From CBSE's 2026-27 sample question paper. Internal choice is given in some questions.
How to use this
- Start with Algebra and Geometry: together they are 35 of the 80 marks.
- Do not skip a small unit: Coordinate Geometry is 6 marks, often in short questions you can be sure of.
- Find your weakest chapter first: a free 20-minute test names it, then practise it on its page.
Practise the whole paper: free Class 10 Maths sample papers, set to these weights.
Questions students ask
Number Systems: 6 marks; Algebra: 20 marks; Coordinate Geometry: 6 marks; Geometry: 15 marks; Trigonometry: 12 marks; Mensuration: 10 marks; Statistics and Probability: 11 marks. Total 80 marks in the theory paper, plus 20 for internal assessment.
Algebra, with 20 of 80 marks, then Geometry with 15.
No. The unit marks in CBSE's 2026-27 curriculum are the same as in 2025-26.
38 questions for 80 marks in 3 hours: Section A, 20 × 1 mark (multiple-choice and assertion-reason); Section B, 5 × 2 marks (very short answer); Section C, 6 × 3 marks (short answer); Section D, 4 × 5 marks (long answer); Section E, 3 × 4 marks (case study).
Source: CBSE curriculum 2026-27, Maths. Unit marks from CBSE's 2026-27 curriculum; question pattern from CBSE's 2026-27 sample question papers. Read on cbseacademic.nic.in on 2026-11-10. Unit marks are unchanged from 2025-26.