SyllabusCBSE class 10 Mathematics syllabus, 2026-27
Units, chapters and marks for Mathematics, from the CBSE curriculum for the session 2026-27.
- Board and class
- CBSE, class 10
- Subject code
- 041 and 241
- Theory paper
- 80 marks, 3 hours
- Internal assessment
- 20 marks
- Total
- 100 marks
- Official file
- Open the CBSE file (PDF)
- Read on
- 12 November 2026
About this syllabus
The syllabus is arranged in seven units. Algebra is the largest, with four chapters and a quarter of the paper, and Geometry comes next. The file describes each chapter in three columns: content, the competencies expected and an explanation, so it tells you not only what to study but what you should be able to do with it. Two subject codes share this syllabus because the Board offers the paper at two levels, Standard and Basic.
Marks by unit
| Unit | Marks | Share of the paper |
|---|---|---|
| Number Systems | 6 | 8% |
| Algebra | 20 | 25% |
| Coordinate Geometry | 6 | 8% |
| Geometry | 15 | 19% |
| Trigonometry | 12 | 15% |
| Mensuration | 10 | 12% |
| Statistics and Probability | 11 | 14% |
| Total, theory | 80 | 100% |
Units and chapters
- Number Systems
- Real Numbers
- Algebra
- Polynomials
- Pair of Linear Equations in Two Variables
- Quadratic Equations
- Arithmetic Progressions
- Coordinate Geometry
- Coordinate Geometry
- Geometry
- Triangles
- Circles
- Trigonometry
- Introduction to Trigonometry
- Trigonometric Identities
- Heights and Distances
- Mensuration
- Areas Related to Circles
- Surface Areas and Volumes
- Statistics and Probability
- Statistics
- Probability
Where the marks are
The theory paper is 80 marks in 3 hours. The largest share goes to Algebra with 20 marks, which is 25% of the paper. The smallest is Number Systems with 6 marks. The two largest entries in the table together carry 35 marks, 44% of the paper. With 15 chapters in all, an average chapter is worth about 5.3 marks, but the table shows how unevenly they are spread.
The other marks
| Part | Marks | How it is split |
|---|---|---|
| Internal assessment | 20 | Pen and paper test and multiple assessment 10 (5 + 5), portfolio 5, lab practical 5 |
Using this to plan
- Algebra, Geometry and Trigonometry together carry 47 of the 80 marks. Make these secure before polishing the smaller units.
- Statistics and Probability, at 11 marks, is the most predictable unit: the question types change little from year to year.
- The 5 marks for lab practical in internal assessment come from the activities in the prescribed books. Keep the record up to date through the year.
Make a study plan from these marks Official file
Questions people ask
How many marks is the CBSE class 10 Mathematics theory paper?
The theory paper is 80 marks. With internal assessment (20) it makes a total of 100.
Which unit carries the most marks in class 10 Mathematics?
Algebra, with 20 of the 80 marks, according to the CBSE curriculum for 2026-27.
Where is the official syllabus?
On CBSE's academic website, cbseacademic.nic.in, under Curriculum. This page links to the exact file for Mathematics.
Always check the official file. This page is a summary of the CBSE curriculum for 2026-27, made from the subject file on cbseacademic.nic.in, which we read on 12 November 2026. CBSE can revise a syllabus by circular during the year. Before an examination, download the current file from the official site. This is an independent site, not connected with CBSE.