So how many chapters are there in class 10th Maths -This is the most asked question regarding class 10th Maths.I have tried my best to answer this in sweet n crispy way.So below you can get details of the syllabus and also their weightage in board exams.
For Class 10 Mathematics (CBSE NCERT syllabus, 2025), there are 15 chapters in total.
Here’s the list chapter–wise:
- Real Numbers
- Polynomials
- Pair of Linear Equations in Two Variables
- Quadratic Equations
- Arithmetic Progressions
- Triangles
- Coordinate Geometry
- Introduction to Trigonometry
- Some Applications of Trigonometry
- Circles
- Constructions
- Areas Related to Circles
- Surface Areas and Volumes
- Statistics
- Probability
👉 These 15 chapters cover the full NCERT syllabus.
Some state boards might merge or split chapters slightly, but overall the structure is the same.
Now lets see the weightage of each chapter to be asked in your exam.
So here’s the chapter–wise marks weightage for Class 10 CBSE Mathematics Board Exam (as per recent exam patterns, small variations can happen year to year, but this is the standard distribution):
📊 Class 10 Math – Chapter Wise Weightage
Unit I: Number Systems (6 Marks)
- Real Numbers
Unit II: Algebra (20 Marks)
- Polynomials
- Pair of Linear Equations in Two Variables
- Quadratic Equations
- Arithmetic Progressions
Unit III: Coordinate Geometry (6 Marks)
- Coordinate Geometry
Unit IV: Geometry (15 Marks)
- Triangles
- Circles
- Constructions
Unit V: Trigonometry (12 Marks)
- Introduction to Trigonometry
- Some Applications of Trigonometry
Unit VI: Mensuration (10 Marks)
- Areas Related to Circles
- Surface Areas and Volumes
Unit VII: Statistics & Probability (11 Marks)
- Statistics
- Probability
✅ Total = 80 Marks (Board Exam)
(Internal Assessment = 20 Marks, including assignments, projects, periodic tests, etc.)
📌 Most Important/High Weightage Areas:
- Algebra (20 Marks)
- Geometry (15 Marks)
- Trigonometry (12 Marks)
- Statistics & Probability (11 Marks)
👉 That means nearly 60% of the paper comes from these 4 units.
Above we have seen the weightage in a broader way .But still if we have to prepare for exams we need a detailed analysis of topics.Below I have tried to give a detailed analysis of topics.
So let’s break the Class 10 Mathematics syllabus weightage in detail, so you know which chapters to focus on first, which are moderate, and which can be revised quickly.
📊 Detailed Chapter-wise Weightage (Class 10 Math – CBSE)
Unit I: Number Systems (6 Marks)
Chapter 1: Real Numbers
- Topics: Euclid’s Division Lemma, HCF & LCM, Fundamental Theorem of Arithmetic, Irrational numbers, Decimal expansions.
- Weightage: ~6 marks (usually 1 long question or 2 short questions).
- Tip: Revise proofs carefully, as 3–4 mark questions often appear.
Unit II: Algebra (20 Marks)
Chapter 2: Polynomials
- Topics: Zeros of polynomials, Relationship between zeros & coefficients, Division algorithm.
- Weightage: 3–4 marks.
Chapter 3: Pair of Linear Equations in Two Variables
- Topics: Graphical & algebraic methods (substitution, elimination, cross multiplication), word problems.
- Weightage: 6 marks (always important).
Chapter 4: Quadratic Equations
- Topics: Solving quadratic equations (factorization, completing the square, quadratic formula), word problems.
- Weightage: 6 marks.
Chapter 5: Arithmetic Progressions
- Topics: nth term, sum of n terms, word problems (practical applications).
- Weightage: 4 marks.
👉 Algebra = 20 marks (biggest chunk, must be prepared thoroughly).
Unit III: Coordinate Geometry (6 Marks)
Chapter 6: Coordinate Geometry
- Topics: Distance formula, Section formula, Area of triangle (coordinate method).
- Weightage: 6 marks (almost always 1 long question).
Unit IV: Geometry (15 Marks)
Chapter 7: Triangles
- Topics: Similarity, Basic Proportionality Theorem, Pythagoras theorem, Applications.
- Weightage: 6 marks.
Chapter 8: Circles
- Topics: Tangent properties, Two tangents from a point, Theorems.
- Weightage: 3–4 marks.
Chapter 9: Constructions
- Topics: Division of a line, Tangent constructions.
- Weightage: 4–5 marks.
👉 Geometry = 15 marks, quite scoring if diagrams are drawn neatly.
Unit V: Trigonometry (12 Marks)
Chapter 10: Introduction to Trigonometry
- Topics: Trigonometric ratios, identities, values at special angles.
- Weightage: 6 marks.
Chapter 11: Applications of Trigonometry
- Topics: Heights & distances (word problems).
- Weightage: 6 marks.
👉 Together = 12 marks. Very important & easy once formulas are memorized.
Unit VI: Mensuration (10 Marks)
Chapter 12: Areas Related to Circles
- Topics: Perimeter & area of sector and segment.
- Weightage: 3–4 marks.
Chapter 13: Surface Areas & Volumes
- Topics: Combination of solids, frustum of cone, conversion of solids.
- Weightage: 6 marks.
👉 Together = 10 marks. Always a question from frustum or surface area-volume conversions.
Unit VII: Statistics & Probability (11 Marks)
Chapter 14: Statistics
- Topics: Mean, Median, Mode of grouped data, graphical representation.
- Weightage: 6 marks.
Chapter 15: Probability
- Topics: Classical definition, simple problems on coins, dice, cards.
- Weightage: 5 marks.
👉 Together = 11 marks. Easy scoring if practiced.
📝 Exam Paper Composition (80 Marks)
- Algebra → 20 Marks (highest weightage)
- Geometry → 15 Marks
- Trigonometry → 12 Marks
- Statistics & Probability → 11 Marks
- Mensuration → 10 Marks
- Coordinate Geometry → 6 Marks
- Real Numbers → 6 Marks
🎯 Priority Strategy for Preparation
- Start with High-Weight + Easy Chapters
- Trigonometry (10, 11)
- Statistics & Probability (14, 15)
- Surface Areas & Volumes (13)
- Then Cover Core Algebra & Geometry
- Quadratic Equations, Linear Equations, AP (3, 4, 5)
- Triangles, Constructions, Circles (7, 8, 9)
- Finish with Small Weightage Chapters
- Real Numbers (1)
- Polynomials (2)
- Areas Related to Circles (12)
- Coordinate Geometry (6)
✅ If you prepare in this order, you’ll secure 60–65 marks easily, and then the rest can be revised quickly.
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