 # NCERT Solutions for Class 8 Maths Chapter 1- Rational Numbers

## NCERT Solutions For Class 8 Maths Chapter 1 PDF Free Download

NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers are provided here. Class 8 is an important phase of a student’s life, the concepts which are taught in class 8 are important to be understood as these concepts are continued on class 9 and 10. To score good marks in class 8 mathematics examination, it is advised to solve questions provided at the end of each chapter in the NCERT book. These NCERT solutions for Class 8 Maths help the students in understanding all the concepts in a better way. Download pdf of class 8 maths chapter 1 NCERT Solutions from the given links.

### Access Answers of Maths NCERT Class 8 Chapter 1 Rational Numbers         Also Access NCERT Exemplar for class 8 Maths Chapter 1 CBSE Notes for class 8 Maths Chapter 1

## NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers

The Chapter 1, Rational Numbers, contains 2 exercises and the NCERT solutions given here contains the answers for all the questions present in these exercises. Let us have a look at some of the concepts that are being discussed in this chapter.

• Rational numbers are closed under the operations of addition, subtraction and multiplication.
• The operations addition and multiplication are
• commutative for rational numbers.
• associative for rational numbers.
• The rational number 0 is the additive identity for rational numbers.
• The rational number 1 is the multiplicative identity for rational numbers.
• Distributivity of rational numbers: For all rational numbers a, b and c,a(b + c) = ab + ac and a(b – c) = ab – ac
• Rational numbers can be represented on a number line.
• Between any two given rational numbers there are countless rational numbers. The idea of mean helps us to find rational numbers between two rational numbers.

Main topics covered in this chapter include:

1.1 Introduction

1.2 Properties of Rational Numbers

1.2.1 Closure

1.2.2 Commutativity

1.2.3 Associativity

1.2.4 The role of zero

1.2.5 The role of 1

1.2.6 Negative of a number

1.2.7 Reciprocal

1.2.8 Distributivity of multiplication over addition for rational numbers.

1.3 Representation of Rational Numbers on the Number Line

1.4 Rational Numbers between Two Rational Numbers

Exercise 1.1 Solutions 11 Questions (11 Short Answer Questions)

Exercise 1.2 Solutions 7 Questions (7 Short Answer Questions)

## NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers

Numbers are considered to be the most basic block of mathematics. In lower classes the students would have learned the different types of numbers including natural numbers, whole numbers, integers etc. The Chapter 1 of class 8 takes the students to another set of numbers, the rational numbers. A number which can be written in the form p/q , where p and q are integers and q ≠ 0 is called a rational number. This chapter explains almost all the concepts that a student of class 8 has to learn about the rational numbers. The chapter 1 of class 8 also describes the method of representing a rational number on a number line as well as the method of finding rational numbers between 2 rational numbers. Read and learn the Chapter 1 of NCERT textbook to learn more about Rational Numbers and the concepts covered in it. Learn the NCERT Solutions for Class 8 effectively to score high in the board examination.

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