Important Maths Questions for Class 10 Board Exams (Chapter-wise with Marks Weightage)
Most Class 10 students study hard but still lose marks because they focus on the wrong questions or ignore high-weight chapters.
This page lists the most important maths questions for Class 10 board exams, organised chapter-wise and aligned with marks weightage, so students know exactly what to prioritise.
Use this guide as a revision checklist — not to memorise answers, but to practise the right types of questions examiners usually ask.
Class 10 Maths Marks Distribution (CBSE 2025–26)
| Unit | Chapter Group | Marks |
|---|---|---|
| I | Number Systems | 6 |
| II | Algebra | 20 |
| III | Coordinate Geometry | 6 |
| IV | Geometry | 15 |
| V | Trigonometry | 12 |
| VI | Mensuration | 10 |
| VII | Statistics & Probability | 11 |
| Total | 80 |
This chapter-wise marks distribution is based on the latest syllabus and assessment framework published by CBSE Academic.
👉 Algebra + Geometry + Trigonometry = 47 marks
These should be your highest priority.
Unit-wise Important Maths Questions for Class 10
🔹 Unit I: Number Systems (6 Marks)
Important Topics
Fundamental Theorem of Arithmetic
Proof of irrational numbers (√2, √3, √5)
High-Probability Question Types
Prove that √5 is irrational
Find HCF using Fundamental Theorem of Arithmetic
Find LCM of two numbers using prime factorization
🎯 Paper setter tip: Proof steps and factorization layout carry marks.
Teacher Tip:
In this unit, focus first on Real Numbers (HCF/LCM questions). These are frequently asked and easy to score if you practise standard question formats.
🔹 Unit II: Algebra (20 Marks – MOST IMPORTANT)
Many students find Algebra challenging during board exams, so getting expert guidance for Class 10 maths preparation can help improve concept clarity and problem-solving accuracy.
1️⃣ Polynomials
Focus Areas
Zeroes of quadratic polynomial
Relationship between zeroes and coefficients
Important Questions
Find zeroes and verify relationship
Find quadratic polynomial given zeroes
2️⃣ Pair of Linear Equations in Two Variables
Focus Areas
Graphical method
Substitution & elimination methods
Word problems
Important Questions
Solve a pair of equations algebraically
Solve real-life word problems (age, money, numbers)
3️⃣ Quadratic Equations
Focus Areas
Factorization
Quadratic formula
Discriminant & nature of roots
Important Questions
Solve quadratic equation using formula
Find nature of roots
Word problems based on quadratic equations
4️⃣ Arithmetic Progressions (AP)
Focus Areas
nth term
Sum of first n terms
Application problems
Important Questions
Find nth term of an AP
Find sum of n terms
Daily-life based AP problems
Many students lose marks in Algebra due to avoidable errors, so it’s important to understand the most common Class 10 maths mistakes before board exams.
🔹 Teacher Tip:
If time is limited, prioritise Quadratic Equations and Arithmetic Progressions (AP). These chapters almost always carry full-length questions and are among the highest scoring topics in the paper.
📐 Unit III: Coordinate Geometry (6 Marks)
Important Topics
Distance formula
Section formula (internal division)
Important Questions
Find distance between two points
Find coordinates of a point dividing a line segment
🎯 Always write formula before substitution.
🔹 Teacher Tip:
Practise Distance Formula and basic graph-based questions carefully. These are usually direct and can help secure quick marks with correct formula application.
📐 Unit IV: Geometry (15 Marks)
1️⃣ Triangles (Similarity)
Focus Areas
Basic Proportionality Theorem (BPT)
Similar triangles criteria
Important Questions
Prove BPT
Find lengths using similarity
2️⃣ Circles
Focus Areas
Tangent theorems
Important Questions
Prove tangent is perpendicular to radius
Find length of tangents from an external point
🎯 Diagrams + theorem statements are compulsory.
🔹 Teacher Tip:
Give maximum attention to Triangles (Similarity Theorems) and Circles (Tangents & Theorems). These chapters are concept-heavy and often tested with 3–5 mark reasoning-based questions.
📐 Unit V: Trigonometry (12 Marks)
1️⃣ Trigonometric Identities
Important Questions
Prove identities using sin²A + cos²A = 1
Evaluate trigonometric expressions
2️⃣ Heights and Distances
Important Questions
Find height of building/tree using angles
Solve problems using 30°, 45°, 60°
🎯 Draw rough diagram first – marks are awarded.
🔹 Teacher Tip:
Memorise Trigonometric Identities and practise Heights and Distances word problems regularly. Mistakes here are common due to formula confusion, so extra practice improves accuracy.
📦 Unit VI: Mensuration (10 Marks)
Important Topics
Areas related to circles
Surface areas & volumes of combined solids
Important Questions
Find area of sector/segment
Find volume after melting or reshaping solids
🔹 Teacher Tip:
Focus on Surface Areas & Volumes. These questions are calculation-based and can fetch full marks if formulas are remembered and steps are written clearly.
📊 Unit VII: Statistics & Probability (11 Marks)
Statistics
Mean, median, mode of grouped data
Step deviation method
Probability
Classical probability
Important Questions
Find mean using step deviation
Find probability of simple events
🔹 Teacher Tip:
Prioritise Mean using Step Deviation Method in Statistics and basic Probability problems. These are scoring areas if calculation steps are organised properly.
🧠 How to Prepare These Important Questions Effectively
Regular revision, timed practice, and reliable Maths tuition support play an important role in improving speed and accuracy before the Class 10 board exams.
Study according to marks weightage Practice step-wise presentation Revise formulas daily Solve previous year questions chapter-wise
CBSE official syllabus and exemplar questions are available on CBSE Academic website
For a complete step-by-step approach, follow our Class 10 Maths Board Exam Preparation Strategy (Last 60-Day Smart Plan).
🎓 Teacher’s Advice for Parents & Students
Knowing which questions are important is only the first step. Many Class 10 students still lose marks due to poor time management, calculation mistakes, or lack of confidence during exams.
If your child understands concepts but struggles to score consistently, personalised guidance and regular feedback can make a big difference — especially in a board exam year.
👨🏫 Teacher’s Final Exam Advice for Class 10 Students(Very Important)
CBSE does not test tricks — it tests:
Concept clarity
Logical steps
Neat presentation
If you master these important question types chapter-wise, scoring 90+ in Class 10 Maths is realistic.
Parents who are looking for consistent academic help can also explore Maths tuition in Gurgaon to ensure regular practice and timely doubt resolution.
If you are practising regularly but still losing marks, learn how to improve accuracy and score higher in maths exams using proven techniques.
Frequently Asked Questions – Class 10 Maths Board Exam
Q1. Are these important maths questions enough for Class 10 board exams?
These important maths questions are based on the latest CBSE syllabus and past year question patterns. Students should also practise NCERT examples and exemplar problems for complete preparation.
Q2. Which unit carries the highest marks in Class 10 Maths CBSE 2026?
Algebra carries the highest weightage with 20 marks, followed by Geometry and Trigonometry. These units should be given maximum priority during preparation.
Q3. Is NCERT enough to score well in Class 10 Maths board exams?
NCERT books are sufficient for concept clarity. However, solving important question types and practising exemplar problems help improve speed and accuracy.
Q4. How many hours should I study Maths daily for Class 10 boards?
Studying Maths for 2 to 3 focused hours daily with regular revision and practice is ideal for Class 10 board exam preparation.
Students can also read a detailed Class 10 Maths board exam preparation strategy to plan revision and time management more effectively.