Chapter 1

Integers

Introduction

medium • 1 min read

Recall

medium • 2 min read

Properties of Addition and Subtraction of Integers

medium • 3 min read

Multiplication of Integers

medium • 4 min read

Properties of Multiplication of Integers

medium • 5 min read

Division of Integers

medium • 6 min read

Properties of Division of Integers

medium • 7 min read

Chapter 2

Fractions and Decimals

Introduction

medium • 1 min read

How Well Have You Learnt About Fractions?

medium • 2 min read

Multiplication of Fractions

medium • 3 min read

Division of Fractions

medium • 4 min read

How Well Have You Learnt About Decimal Numbers?

medium • 5 min read

Multiplication of Decimal Numbers

medium • 6 min read

Division of Decimal Numbers

medium • 7 min read

Chapter 3

Data Handling

Introduction

medium • 1 min read

Collecting Data

medium • 2 min read

Organisation of Data

medium • 3 min read

Representative Values

medium • 4 min read

Arithmetic Mean

medium • 5 min read

Mode

medium • 6 min read

Median

medium • 7 min read

Use of Bar Graphs with a Different Purpose

medium • 8 min read

Chance and Probability

medium • 9 min read

Chapter 4

Simple Equations

A Mind-Reading Game!

medium • 1 min read

Setting Up of an Equation

medium • 2 min read

Review of What We Know

medium • 3 min read

What Equation Is?

medium • 4 min read

More Equations

medium • 5 min read

From Solution to Equation

medium • 6 min read

Applications of Simple Equations to Practical Situations

medium • 7 min read

Chapter 5

Lines and Angles

Introduction

medium • 1 min read

Related Angles

medium • 2 min read

Intersecting Lines

medium • 3 min read

Pairs of Lines

medium • 4 min read

Checking for Parallel Lines

medium • 5 min read

Chapter 6

The Triangle and its Properties

Introduction

medium • 1 min read

Medians of a Triangle

medium • 2 min read

Altitudes of a Triangle

medium • 3 min read

Exterior Angle of a Triangle and its Property

medium • 4 min read

Angle Sum Property of a Triangle

medium • 5 min read

Two Special Triangles: Equilateral and Isosceles

medium • 6 min read

Sum of the Lengths of Two Sides of a Triangle

medium • 7 min read

Right-Angled Triangles and Pythagoras Property

medium • 8 min read

Chapter 7

Comparing Quantities

Introduction

medium • 1 min read

Equivalent Ratios

medium • 2 min read

Percentage - Another Way of Comparing Quantities

medium • 3 min read

Use of Percentages

medium • 4 min read

Prices Related to an Item or Buying and Selling

medium • 5 min read

Charge Given on Borrowed Money or Simple Interest

medium • 6 min read

Chapter 8

Rational Numbers

Introduction

medium • 1 min read

Need for Rational Numbers

medium • 2 min read

What are Rational Numbers?

medium • 3 min read

Positive and Negative Rational Numbers

medium • 4 min read

Rational Numbers on a Number Line

medium • 5 min read

Rational Numbers in Standard Form

medium • 6 min read

Comparison of Rational Numbers

medium • 7 min read

Rational Numbers between Two Rational Numbers

medium • 8 min read

Operations on Rational Numbers

medium • 9 min read

Chapter 9

Perimeter and Area

Introduction

medium • 1 min read

Squares and Rectangles

medium • 2 min read

Area of a Parallelogram

medium • 3 min read

Area of a Triangle

medium • 4 min read

Circles

medium • 5 min read

Conversion of Units

medium • 6 min read

Applications

medium • 7 min read

Chapter 10

Algebraic Expressions

Introduction

medium • 1 min read

How are Expressions Formed?

medium • 2 min read

Terms of an Expression

medium • 3 min read

Like and Unlike Terms

medium • 4 min read

Monomials, Binomials, Trinomials and Polynomials

medium • 5 min read

Addition and Subtraction of Algebraic Expressions

medium • 6 min read

Finding the Value of an Expression

medium • 7 min read

Using Algebraic Expressions - Formulas and Rules

medium • 8 min read

Chapter 11

Exponents and Powers

Introduction

medium • 1 min read

Exponents

medium • 2 min read

Laws of Exponents

medium • 3 min read

Miscellaneous Examples Using the Laws of Exponents

medium • 4 min read

Decimal Number System

medium • 5 min read

Expressing Large Numbers in the Standard Form

medium • 6 min read

Chapter 12

Symmetry

Introduction

medium • 1 min read

Lines of Symmetry for Regular Polygons

medium • 2 min read

Rotational Symmetry

medium • 3 min read

Line Symmetry and Rotational Symmetry

medium • 4 min read

Chapter 13

Visualising Solid Shapes

Introduction: Plane Figures and Solid Shapes

medium • 1 min read

Faces, Edges and Vertices

medium • 2 min read

Nets for Building 3-D Shapes

medium • 3 min read

Drawing Solids on a Flat Surface

medium • 4 min read

Viewing Different Sections of a Solid

medium • 5 min read