NCERT Class 8 Maths Rational Numbers

Read and download NCERT Class 8 Maths Rational Numbers in NCERT book for Class 8 Mathematics. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Mathematics textbook for Class 8 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 8 Mathematics to understand the answers of the exercise questions given at the end of this chapter

NCERT Book for Class 8 Mathematics Chapter 1 Rational Numbers

Class 8 Mathematics students should refer to the following NCERT Book Chapter 1 Rational Numbers in Class 8. This NCERT Book for Class 8 Mathematics will be very useful for exams and help you to score good marks

Chapter 1 Rational Numbers NCERT Book Class 8

 

1.1 Introduction
In Mathematics, we frequently come across simple equations to be solved. For example, the equation x + 2 = 13 (1)
is solved when x = 11, because this value of x satisfies the given equation. The solution 11 is a natural number. On the other hand, for the equation

                                                x + 5 = 5 (2)

the solution gives the whole number 0 (zero). If we consider only natural numbers, equation (2) cannot be solved. To solve equations like (2), we added the number zero to the collection of natural numbers and obtained the whole numbers. Even whole numbers will not be sufficient to solve equations of type

                                              x + 18 = 5 (3)

Do you see ‘why’? We require the number –13 which is not a whole number. This led us to think of integers, (positive and negative). Note that the positive integers correspond to natural numbers. One may think that we have enough numbers to solve all simple equations with the available list of integers. Now consider the equations

                                              2x = 3 (4)

                                              5x + 7 = 0 (5)

for which we cannot find a solution from the integers. (Check this) We need the numbers 3/2 to solve equation (4) and 7/5 to solve equation (5). This leads us to the collection of rational numbers.

We have already seen basic operations on rational numbers. We now try to explore some properties of operations on the different types of numbers seen so far.

NCERT Class 8 Maths Rational Numbers

Please refer to attached file for NCERT Class 8 Maths Rational Numbers

Chapter 01 Rational Numbers
NCERT Class 8 Maths Rational Numbers
Chapter 02 Linear Equations in One Variable
NCERT Class 8 Maths Linear Equations in One Variable
Chapter 03 Understanding Quadrilaterals
NCERT Class 8 Maths Understanding Quadrilaterals
Chapter 04 Practical Geometry
NCERT Class 8 Maths Practical Geometry
Chapter 05 Data Handling
NCERT Class 8 Maths Data Handling
Chapter 06 Squares and Square Roots
NCERT Class 8 Maths Squares and Square Roots
Chapter 07 Cubes and Cube Roots
NCERT Class 8 Maths Cubes and Cube Roots
Chapter 08 Comparing Quantities
NCERT Class 8 Maths Comparing Quantities
Chapter 09 Algebraic Expressions and Identities
NCERT Class 8 Maths Algebraic Expressions and Identities
Chapter 10 Visualising Solid Shapes
NCERT Class 8 Maths Visualising Solid Shapes
Chapter 11 Mensuration
NCERT Class 8 Maths Mensuration
Chapter 12 Exponents and Powers
NCERT Class 8 Maths Exponents and Powers
Chapter 13 Direct and Inverse Proportions
NCERT Class 8 Maths Direct and Inverse Proportions
Chapter 14 Factorisation
NCERT Class 8 Maths Factorisation
Chapter 15 Introduction to Graphs
NCERT Class 8 Maths Introduction to Graphs
Chapter 16 Playing with Numbers
NCERT Class 8 Maths Playing with Numbers

NCERT Book Class 8 Mathematics Chapter 1 Rational Numbers

The above NCERT Books for Class 8 Mathematics Chapter 1 Rational Numbers have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 1 Rational Numbers Mathematics Class 8 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 1 Rational Numbers NCERT etextbooks as the exams for Class 8 Mathematics are always asked as per the syllabus defined in these ebooks. These Class 8 Chapter 1 Rational Numbers book for Mathematics also includes collection of question. Along with Mathematics Class 8 NCERT Book in Pdf for Chapter 1 Rational Numbers we have provided all NCERT Books in English Medium for Class 8 which will be really helpful for students who have opted for english language as a medium. Class 8 students will need their books in English so we have provided them here for all subjects in Class 8.

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