mathematics

This subject covers units such as geometry, statistics, algebra and, arithmetic

Arithmetic covers chapters such as Rational Numbers, Square Roots and Cube Roots, Exponents and Powers, Playing with Numbers, Direct and Inverse Proportions and, Comparing Quantities using Proportion

Arithmetic

Algebra covers chapters such as Factorisation, Linear Equations in One Variable and, Algebraic Expressions

Algebra

Geometry covers chapters such as Construction of Quadrilaterals, Area of Plane Figures, Exploring Geometrical Figures, Visualising 3D in 2D and, Surface Area and Volume (Cube-Cuboid)

Geometry

Statistics contains chapter Frequency Distribution Tables and Graphs

Statistics

MATHEMATICS Textbook for Class VIII

Mathematics Class 8

Joy Of Mathematics 8

Estimation of Square Roots

Multiplication of Three or More Monomials

Calculating GST, VAT and Sales Taxes

Calculation of Taxes for Purchased Goods

Construction of Rhombus With Special Properties

Area of Polygon by Triangulation

Area of Regular and Irregular Polygons

Construction of a Square

How to Construct Rectangles

Patterns of Square Numbers

Number Patterns From Triangles to Squares

Square Numbers and Triangular Numbers

Area of Quadrilateral Using Heron's Formula

Isometric Sketch of Solids

Rational Numbers Between Two Rational Numbers

Expressing Large Numbers in Standard Form

Use of Exponents to Express Small Numbers in Standard Form

Increase or Decrease in Percent

Errors in Addition and Subtraction of Expressions

Errors in Operations of Algebraic Expressions

Mean Deviation of Grouped Data

Meaning of Cost Price and Selling Price

Meaning of Profit & Loss

Additional Expenses and Net Price

To Find Sale Price

Examples on Profit and Loss

Profit and Loss Percentage: Example

Factorisation Using Difference of Two Squares

What is an Equation?

Fractions to Decimals and Decimals to Fractions

Surface Area and Volume of Right Triangular Prism

Prism and Their Types

Application of (a²-b²)

Equations Reducible to the Linear Form

Solution of Linear Equation Illustration 4

Solution of Linear Equation:Illustration 2

Elements of Regular Octagon

Zero & Negative Integral Indices

Index of a Number

Exponents and Powers

Horizontal Method of Addition

Area of Circle and Annular Region

Area of a Circle

Opposite & Inverse of a Rational Number

Representing Rational Numbers on a Number Line

Introduction to Rational Numbers

Difference Between Simple and Compound Interest

Simple and Compound Interest

Profit Percentage: Illustration

Profit or Loss as a Percentage

Conversion of Percentages

Illustration of Percentages

Converting Percentage Into Fraction

How to Calculate X% of Some Amount 

Congruent Figures

Word Problem on Age

Linear Equation Word Problem

Illustration on Solving the Equation

Solving a Linear Equation in One Variable

Concept of Symmetry and Reflection

Practical Application of Equation and Its Solution

Equation and Its Solution

Closure and Commutative Properties of Real Numbers

Existence of Inverse and Distributive Property

Area of a Square: Illustration

Drawing a Bar Graph

Interpretation of a Bar Graph

Basics of Bar Graph

Pictograph and Its Interpretation

Introduction to Graphs

Organising Data and Frequency of Data

Test for Divisibility by 9

Test for Divisibility by 4 and 8

Test for Divisibility by 3

Test for Divisibility by 10

Multiples of a Number

Factors of a Number

Sum of First n Natural Numbers

Conversion of Cumulative into Ordinary Frequency

Cumulative Frequency Table by Less Than Method

Area of Minor and Major Segments

Problem on Area of Path Around a Circular Region

Areas of a Sector and a Segment of a Circle

Concept of Arc, Area and Perimeter of Sector

Problems on Annular Regions

Problems on Area of Circles

Definition of Pi (π)

Similar Figures

Cross Multiplication Method: Illustration

Mode of Data

Median of Ungrouped Data: Illustration

Median of Ungrouped Data

Illustration of Mean of Ungrouped Data

Arithmetic Mean of the Data

Frequency Polygon and Frequency Distribution Table

Understanding Frequency Polygon

Volume of Cubes and Cuboids: Problems

Pyramids and Their Types

Surface Area of a Right Prism

Surface Area of a Cuboid: Example

This chapter unfolds the notion of divisibility rule of 2, 3, 5, 6, 9 and 10. Further, it explores the concept of factors, multiples, prime numbers and composite numbers.

Playing with Numbers

This chapter will illustrate the calculation of the surface area of cuboid and cubes with the help of an activity. Furthermore, some related examples are also mentioned here for better understanding.

Surface Area and Volume (Cube-Cuboid)

This chapter illustrates the concept of representation of 3D figures on 2D. We will construct a 3D image on the paper which is 2D. It describes the method to draw 3D figures on isometric dot sheets also.

Visualising 3D in 2D

This chapter discusses the factors of algebraic expressions and the need for factorisation. We learn to factorise expressions using different methods. It further explains how to carry out the division of algebraic expressions with examples.

Factorisation

In this chapter, the concept of algebraic expressions and identities are introduced. It defines expressions, monomials, and binomials. It also describes the degree of various algebraic expressions and how to apply arithmetic operations.

Algebraic Expressions

In this chapter, we will learn to solve problems based on a direct proportion. It describes the direct proportion as the ratio of two quantities, which remains constant. With the help of examples, we learn about inverse and compound proportions.

Direct and Inverse Proportions

This chapter deals with the area of plane figures. It tells how to find the area of various two-dimensional figures like trapezium, quadrilateral, rhombus, circle, polygons, and sector. We will also learn how to find the length of the arc.

Area of Plane Figures

This chapter discusses the geometrical figures found in our surroundings. It explains the congruence and similarity of shapes. It discusses the different types of symmetry and their applications. It also briefs on dilation and its construction.

Exploring Geometrical Figures

This chapter explains the basic measures of central tendency and cumulative frequency. It discusses the characteristics of a grouped frequency distribution. It describes the graphical representation of grouped frequency distribution using histograms.

Frequency Distribution Tables and Graphs

This chapter sheds light on the properties of square numbers and Pythagorean triplets. We will learn to find square roots and cube roots using different methods. It also explains how to solve problems based on the number pattern in squares.

Square Roots and Cube Roots

In this chapter, we will learn to solve problems based on profit and loss, percentages, discounts, sales tax, value-added tax, and goods and services tax. It also explains how to deduce a formula for compound interest.

Comparing Quantities using Proportion

This chapter explores the concepts of exponents and powers. It helps us understand powers with negative exponents and laws of exponents. It also discusses the applications of exponents to express small numbers in standard form.

This chapter emphasizes the construction of quadrilaterals. It explains the construction of quadrilaterals with the given measurements. It also describes the properties of parallelogram, rectangle, rhombus, square and trapezium.

Construction of Quadrilaterals

This chapter deals with linear equations and their applications. It teaches us how to solve a linear equation that has variables only on one side and two variables on both sides. We will also learn to reduce equations to a simpler form.

Linear Equations in One Variable

This chapter sheds light on rational numbers. We will learn the properties of rational numbers in detail. It also explains how to represent rational numbers on a number line and how to find a rational number between two rational numbers.

Rational Numbers

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