Maths is one of the most scoring subjects in CBSE Class 10. But most students lose marks because they prepare without a clear plan. This guide covers everything: chapter-wise syllabus, unit weightage, exam pattern, and what actually works when you sit down to study.
Quick overview
The Class 10 Maths board exam is divided into two parts:
| Component | Marks |
|---|---|
| Theory exam | 80 |
| Internal assessment | 20 |
| Total | 100 |
Number Systems, Algebra, Coordinate Geometry, Geometry, Trigonometry, Mensuration, and Statistics & Probability are the seven units on the syllabus.
CBSE Class 10 Maths Syllabus 2026-27 Overview
CBSE tests students at 3 cognitive levels. The marks are divided between Standard and Basic as follows:
| Cognitive level | Standard Math | Basic Math |
|---|---|---|
| Remembering and understanding | 43 | 60 |
| Applying | 19 | 12 |
| Analysing and evaluating | 18 | 8 |
| Internal assessment | 20 | 20 |
There will be more HOTS (Higher Order Thinking Skills) questions if you are taking standard math. Word problems, multi-step questions, and analytical reasoning carry more weight.
Basic math leans toward direct questions where you recall formulas and apply them straightforwardly.
CBSE Class 10 Maths Course Structure 2026-27
| Unit | Topic | Marks |
|---|---|---|
| Unit I | Number Systems | 6 |
| Unit II | Algebra | 20 |
| Unit III | Coordinate Geometry | 6 |
| Unit IV | Geometry | 15 |
| Unit V | Trigonometry | 12 |
| Unit VI | Menstruation | 10 |
| Unit VII | Statistics and Probability | 11 |
| Theory total | 80 |
Algebra carries the highest marks. Geometry and Trigonometry together add up to 27 marks. Statistics and probability, which most students underestimate, give you 11 marks with relatively less effort if you practice regularly.
Chapter-wise syllabus
CBSE Class 10 Maths Chapter-Wise Syllabus 2026-27
Unit I: Number Systems (6 marks)
Chapter: Real Numbers
- Euclid’s Division Lemma
- Fundamental Theorem of Arithmetic
- Decimal expansion of rational numbers
- Irrational numbers
Unit II: Algebra (20 marks)
This unit has 4 chapters and carries the most marks. Don’t skip anything here.
Chapter 1: Polynomials
- Zeros of polynomials
- The connection between quadratic polynomials’ coefficients and zeros
Main relation:
Chapter 2: A pair of linear equations in two variables.
Methods covered:
- Graphical method
- Substitution method
- Elimination method
Chapter 3: Quadratic Equations
- Standard form
- Factorisation
- Quadratic formula
- Discriminant
Key formula:
Chapter 4: Arithmetic Progressions (AP)
- nth term of an AP
- Sum of n terms
Key formulas:
Sₙ = n/2 × [2a + (n – 1) [d]
Unit III: Coordinate Geometry (6 marks)
- Distance formula
- Section formula
Unit IV: Geometry (15 marks)
Chapter 1: Triangles
- Similar triangles
- Basic Proportionality Theorem
- Area theorem
Focus on theorem proofs and writing clear statements. Board examiners look for specific steps.
Chapter 2: Circles
- A tangent is perpendicular in line with the radius at the point of contact
- Equal tangents from an external point
Unit V: Trigonometry (12 marks)
One of the easiest units to score high in, if you know your formulas.
Chapter 1: Introduction to Trigonometry
- Trigonometric ratios
- Standard angle values are 0°, 30°, 45°, 60°, and 90°.
- Complementary angles
Key identity:
Chapter 2: Applications of Trigonometry
- Heights and distances
- Angle of elevation
- Angle of depression
Unit VI: Mensuration (10 marks)
Chapter 1: Areas Related to Circles
- Arc length
- Area of sector
- Area of segment
Chapter 2: Surface Areas and Volumes
- Cones, cylinders, spheres
- Combined solids
Unit VII: Statistics and Probability (11 marks)
Statistics: Mean, median, mode, grouped data.
Probability: Classical probability, experimental probability.
Maths Basic vs. Math Standard
| Feature | Maths Basic | Maths Standard |
|---|---|---|
| Difficulty level | Easier | Moderate to difficult |
| Question type | Direct | Analytical |
| Syllabus | Same | Same |
| Best for | Students not taking Maths in Class 11 | Students planning Science, Commerce with Maths, or competitive exams |
basic and standard Both papers have the same syllabus. The difference is only in how questions are framed and how hard the application problems get.
you are slightly considering engineering, data science, economics, or any stream where math continues in Class 11, pick Standard. Switching later is not straightforward.
Internal assessment (20 marks)
| Component | Marks |
|---|---|
| Periodic tests | 10 |
| Portfolio | 5 |
| Math lab activities | 5 |
Students often ignore internal assessment and then realize later how much it matters. These 20 marks can be the difference between 70% and 80%. Take every periodic test seriously.
CBSE Class 10 Maths Preparation Tips 2026-27
- Complete NCERT first. Don’t open any reference book until you’ve solved every NCERT exercise and example. This is non-negotiable.
- Practice daily. Math is a skill. It is not possible to cram it the night before. Five hours prior to the test is inferior to forty-five minutes of practice every day.
- Maintain a formula notebook. Write every formula by hand. Revise the notebook every weekend. Your brain retains written material far better than typed notes.
- Solve previous year papers. The last 5 years of CBSE papers will show you which chapters appear every year, how questions are worded, and how to manage 3 hours effectively.
- Do not avoid weak chapters. If trigonometry or geometry feels hard, that’s exactly where you should spend more time. Avoiding them doesn’t make them disappear from the paper.
- Attempt sample papers under timed conditions. Set a 3-hour timer. Sit with the paper. This is the only way to know if your speed is actually exam-ready.
Common mistakes to avoid
- Skipping NCERT examples and jumping straight to exercises
- Not writing theorem proofs in Geometry
- Forgetting to verify signs in Quadratic Equations
- Solving Statistics and Probability only at the last minute
- Not practicing case-study questions (these come every year in standard math)
You will have to fix even 2-3 of these can add 10 to 15 marks to your final score.
Is any CBSE portion deleted for 2026-27?
No major deletions have been announced by CBSE for the 2026-27 session. The syllabus follows the same structure as recent years. Prepare from the latest NCERT books and you will be fine.
FAQs
What are the main units in CBSE Class 10 math?
Number Systems, Algebra, Coordinate Geometry, Geometry, Trigonometry, Mensuration, and Statistics & Probability.
Which chapter carries the highest marks?
Algebra, with 20 marks out of 80.
Is NCERT enough for Class 10 math boards?
Yes. Most questions are directly from NCERT examples and exercises. Master NCERT before anything else.
who Maths Basic easier than Maths Standard?
Yes. Basic has more direct questions. Standard has more application and analytical problems.
How many marks are for internal assessment?
20 marks, split across periodic tests (10), portfolio (5), and math lab activities (5).
Which chapters are easy for scoring?
Coordinate geometry, probability, statistics, and arithmetic progressions. With regular practice, these chapters can earn full marks.