CBSE Class 8 Maths Syllabus - Free PDF Download
CBSE Syllabus 2025-26 Class 8: The CBSE Class 8 Maths Syllabus for the examination year 2025-26 has been released by the Central Board of Secondary Education, CBSE. The board will hold the final examination at the end of the year following the annual assessment scheme, which has led to the release of the syllabus. The 2025-26 CBSE Class 8 Maths Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new CBSE syllabus to prepare for their annual exam properly.
The detailed CBSE Class 8 Maths Syllabus for 2025-26 is below.
Academic year:
CBSE Class 8 Mathematics Revised Syllabus
CBSE Class 8 Mathematics Course Structure 2025-26 With Marking Scheme
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Syllabus
1 Rational Numbers
- Rational Numbers
- Properties of Rational Numbers
- Concept of Reciprocals or Multiplicative Inverses
- Rational Numbers on a Number Line
- Rational Numbers Between Two Rational Numbers
- Multiples and Common Multiples
- Introduction
- Definition: Multiple
- Examples
- Properties of Multiples
- Real-life Application
2 Linear Equations in One Variable
- Constants and Variables in Mathematics
- Definition: Constants
- Definition: Variables
- Identifying Terms
- Real-Life Application
- Key Points Summary
- Equation in Mathematics
- Definition: Equation
- Balancing an Equation
- Expressions with Variables
- Word Problems on Linear Equations
- Introduction
- Example 1
- Example 2
- Example 3
- Key Points Summary
- Solving Equations Which Have Linear Expressions on One Side and Numbers on the Other Side
- Some Applications Solving Equations Which Have Linear Expressions on One Side and Numbers on the Other Side
- Solving Equations Having the Variable on Both Sides
- Some More Applications on the Basis of Solving Equations Having the Variable on Both Sides
- Reducing Equations to Simpler Form
- Equations Reducible to Linear Equations
3 Understanding Quadrilaterals
- Concept of Curves
- Different Types of Curves - Closed Curve, Open Curve, Simple Curve.
- Basic Concept of Polygons
- Introduction
- Definition: Polygon
- Parts of a Polygon
- Classification of Polygons (Naming)
- Types of Polygons
- Real-LIfe Examples
- Key Points Summary
- Classification of Polygons
- Regular Polygon
- Irregular Polygon
- Convex Polygon
- Concave Polygon
- Simple Polygon
- Complex Polygon
- Properties of Quadrilateral
- Adjacent Sides and Angles
- Opposite Sides and Angles
- Diagonals of a Quadrilateral
- Angle Sum Property of a Quadrilateral
- Sum of Interior Angles of a Polygon
- Introduction
- Formula: Sum of Interior Angles
- Example
- Key Points Summary
- Sum of Exterior Angles of a Polygon
- Introduction
- Properties
- Example 1
- Example 2
- Key Points Summary
- Quadrilaterals
- Introduction
- Parts of a Quadrilateral
- Reading and Writing of a Quadrilateral
- Real-Life Examples
- Key Points Summary
- Properties of Trapezium
- Properties of Kite
- Properties of a Parallelogram
- Properties of Rhombus
- Properties of Rectangle
- Properties of a Square
4 Data Handling
- Mathematical Data Collection and Organisation
- Introduction
- Definition: Data
- Definition: Raw Data
- Organising Data
- Example 1
- Example 2
- Example 3
- Key Points Summary
- Pictographs
- Introduction
- Scale
- Example 1
- Example 2
- Key Points Summary
- Bar Graphs
- Introduction
- Elements of Bar Graph
- Example 1
- Example 2
- Example 3
- Key Points summary
- Interpretation of a Double Bar Graph
- Drawing a Double Bar Graph
- Frequency Distribution Table
- Ungrouped Frequency Distribution Table
- Grouped Frequency Distribution Table
- Histograms
- Pie Diagram
- Chance and Probability - Chance
- Concept of Probability
4 Practical Geometry
- Geometric Tool
- Constructing a Quadrilateral
- Some Special Cases
5 Squares and Square Roots
- Concept of Square Number
- Properties of Square Numbers
- Some More Interesting Patterns of Square Number
- Finding the Square of a Number
- Other Patterns in Squares
- Pythagorean Triplets
- Concept of Square Roots
- Finding square roots
- Finding Square Root Through Repeated Subtraction
- Finding Square Root Through Prime Factorisation
- Finding Square Root by Division Method
- Square Root of Decimal Numbers
- Estimating Square Root
6 Cubes and Cube Roots
- Concept of Cube Number
- Patterns in Numbers
- Number Patterns and Sequences
- Visualising Number Sequence
- Exploring Number Patterns
- Relations Among Number Sequences
- Concept of Cube Root
- Cube Root Through Prime Factorisation Method
- Finding the Cube Roots of the Cubic Numbers Through the Estimation Method
7 Comparing Quantities
- Ratio
- Definition: Ratio
- Key Concepts in Ratios
- Examples
- Real-Life Application
- Increase Or Decrease as Percent
- Concept of Discount
- Estimation in Percentages
- Basic Concepts of Profit and Loss
- Calculation of Interest
- Introduction
- Important Terms
- Formula: Simple Interest
- Calculation of Interest
- Examples
- Concept of Compound Interest
- Deducing a Formula for Compound Interest
- Rate Compounded Annually Or Half Yearly (Semi Annually)
- Applications of Compound Interest Formula
8 Algebraic Expressions and Identities
- Algebraic Expressions
- Introduction
- Types of Expressions
- Rules for Separating Terms
- Framing Algebraic Expressions and Formulas
- Real-Life Applications
- Key Points Summary
- Terms, Factors and Coefficients of Expression
- Classification of Terms in Algebra
- Introduction
- Parts of an Algebraic Expression
- Definition: Like Terms
- Definition: Unlike Terms
- Addition of Algebraic Expressions
- Subtraction of Algebraic Expressions
- Multiplication of Algebraic Expressions
- Introduction
- Multiplying Algebraic Expressions
- Examples: Monomial × Monomial
- Examples: Monomial × Polynomial
- Examples: Binomial × Binomial
- Key Points Summary
- Concept of Identity
- Expansion of (a + b)2 = a2 + 2ab + b2
- Expansion of (a - b)2 = a2 - 2ab + b2
- Expansion of (a + b)(a - b) = a2-b2
- Expansion of (x + a)(x + b)
9 Mensuration
- Basic Concepts in Mensuration
- Introduction
- Plane Closed Figures
- Region of the Figure
- Key Points Summary
- Area of Trapezium
- Area of a General Quadrilateral
- Area of a Rhombus
- Area of the rhombus if base and height are given.
- Area of the rhombus if the diagonals are given.
- Area of a Polygon
- Plane Figures and Solid Shapes
- Surface Area of a Cuboid
- Surface Area of a Cube
- Mensuration of Cylinder
- Definition: Cylinder
- Properties of a Cylinder
- Activity 1
- Activity 2
- Surface Area of a Combination of Solids
- Volume of a Cuboid
- Volume of Cube
10 Exponents and Powers
10 Visualizing Solid Shapes
- Plane Figures and Solid Shapes
- Nets of 3D Figures
- Definition: Net
- Example
- Key Points Summary
- Viewing Different Sections of a Solid
- Mapping Space Around Us
- Faces, Edges and Vertices of Polyhedron
- Introduction
- Faces, Edges, and Vertices
- Cuboid
- Cube
- Cylinder
- Sphere
- Cone
- Prism
- Triangular Pyramid
- Quadrilateral Pyramid
- Key Points Summary
- Concept of Polyhedron
- Pyramid
- Definition: Pyramid
- Properties of a Pyramid
- Activity 1
- Activity 2
- Euler's Formula
- Prism
- Definition: Prism
11 Direct and Inverse Proportions
12 Factorization
- Factors and Common Factors
- Definition: Factor
- Product and Factor
- Examples of Finding Factors of Numbers
- Properties of Factors
- Definition: Common Factor
- Activity
- Factorising Algebraic Expressions
- Factorisation by Taking Out Common Factors
- Factorisation by Regrouping Terms
- Factorisation Using Identities
- Factors of the Form (x + a)(x + b)
- Division of Algebraic Expressions
- Concept of Find the Error
13 Introduction to Graphs
- Concept of Graph
- Definition: Graph
- Graph Paper
- X-axis and Y-axis
- Use of Scale
- Bar Graphs
- Introduction
- Elements of Bar Graph
- Example 1
- Example 2
- Example 3
- Key Points summary
- Concept of Double Bar Graph
- Interpretation of a Double Bar Graph
- Drawing a Double Bar Graph
- Pie Diagram
- Histograms
- Concept of a Line Graph
- Linear Graphs
- Location of a Point
- Coordinates
- Some Application of Linear Graphs
- Independent variable
- Dependent variable
- Quantity and Cost
- Principal and Simple Interest
- Time and Distance
16 Playing with Numbers
- Numbers in General Form
- Games with Numbers
- Letters for Digits
- Tests for Divisibility of Numbers
- Divisibility by 10
- Rule
- Step-by-Step Explanation
- Examples
- Real-Life Application
- Key Points Summary
- Divisibility by 5
- Rule
- Step-by-Step Explanation
- Examples
- Real-Life Application
- Key Points Summary
- Divisibility by 2
- Rule
- Step-by-Step Explanation
- Examples
- Real-Life Application
- Key Points Summary
- Divisibility by 3
- Rule
- Step-by-Step Explanation
- Examples
- Real-Life Application
- Key Points Summary
- Divisibility by 9
- Rule
- Step-by-Step Explanation
- Examples
- Real-Life Application
- Key Points Summary
- Divisibility by 10
