CBSE Class 10 Maths Important Topics – You Should Not Miss in Board Exam 2025

Here is a list of key topics from each chapter in Class 10 Maths that you should focus on:

•  Number Systems – Real numbers, irrational numbers, and prime factorization.
• Algebra – Polynomials, linear equations, quadratic equations, and arithmetic progressions.
• Coordinate Geometry – Distance formula and section formula.
• Geometry – Triangle similarity rules, circle properties, and tangents.
• Trigonometry – Basic concepts, heights, and distances.
• Mensuration – Areas related to circles and surface areas/volumes of combined solids.
• Statistics and Probability – Finding the mean using the assumed mean method and step-deviation method, calculating mode, and determining the median using cumulative frequency.

Ensure that you revise and practice these topics thoroughly for better understanding and high scores! 

List of Important Topics for Class 10 Maths 2025 - Chapter wise

chapter-wise breakdown of the most important topics you need to focus on for Class 10 Maths in 2025:

1. Number Systems

• Real numbers and their properties
• Euclid’s division lemma
• Prime factorization and LCM-HCF

2. Algebra

• Polynomials – Relationship between zeros and coefficients
• Pair of Linear Equations in Two Variables – Graphical and algebraic solutions (substitution, elimination, cross-multiplication)
• Quadratic Equations – Solution by factorization, completing the square, and quadratic formula
• Arithmetic Progressions (AP) – nth term and sum of first n terms

3. Coordinate Geometry

• Distance formula
• Section formula (midpoint and ratio division)
• Area of a triangle using coordinate points

4. Geometry

• Triangles – Pythagoras theorem, similarity criteria (AA, SAS, SSS), basic proportionality theorem
• Circles – Properties of tangents, number of tangents from a point

5. Trigonometry

• Trigonometric ratios and identities
• Trigonometric values of standard angles
• Applications of trigonometry (Heights and Distances)

6. Mensuration

• Areas related to circles (sector, segment)
• Surface areas and volumes of combination of solids (cylinder, cone, sphere)

7. Statistics and Probability

• Mean, median, mode (Assumed Mean Method, Step-Deviation Method)
• Cumulative frequency curves
• Probability of simple events

CBSE Class 10 Maths Board Exam 2025 - Best Reference Books

While NCERT Mathematics is the most important book for CBSE Class 10 Maths, referring to additional books can help strengthen your concepts, provide extra practice, and improve problem-solving skills. Here are some of the best reference books for Class 10 Maths in 2025:

1. NCERT Mathematics (Must-Study) 

• The NCERT book is essential as most board exam questions are directly based on it.
• Focus on examples, exercises, and solved problems given in the book.

2. RD Sharma – Mathematics for Class 10 

• Best for concept clarity and in-depth explanations
• Includes detailed solutions and step-by-step problem-solving techniques
• Ideal for students aiming for high scores in the board exam

3. RS Aggarwal – Mathematics for Class 10 

• Good for extra practice with a variety of questions
• Covers different difficulty levels – easy, moderate, and advanced
• Useful for quick revision and practicing shortcut methods

4. Xam Idea Mathematics

• Concept-based questions with important formulas and tips
• Chapter-wise previous year questions and case-based questions
• Includes sample papers and mock tests

5. All in One Mathematics – Arihant 

• Follows NCERT syllabus with detailed explanations
• Includes extra solved examples, HOTS questions, and sample papers
• Great for last-minute revision

6. Oswaal CBSE Question Bank & Sample Papers 

• Best for solving CBSE sample papers and previous years’ papers
• Includes mind maps, quick revision notes, and exam tips
• Helps students practice case-study and competency-based questions

Which Book Should You Choose?

• For Concept Clarity & Theory: RD Sharma or RS Aggarwal
• For Extra Practice: RS Aggarwal, Xam Idea, or Arihant
• For Solving Past Papers & Mock Tests: Oswaal or CBSE Sample Papers
• For Quick Revision: Arihant’s All in One or Xam Idea.