NCERT Solutions for Class 9 Maths Chapter 1 Number Systems

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.1

Ex 1.1 Class 9 Maths Question 1.
Is zero a rational number? Can you write it in the form pq,where p and q are integers and q ≠0?
Solution:
Yes, zero is a rational number it can be written in the form pq.
0 = 0/1 = 0/2 = 0/3 etc. denominator q can also be taken as negative integer.

Ex 1.1 Class 9 Maths Question 2.
Find six rational numbers between 3 and 4.
Solution:
Let qi be the rational number between 3
and 4, where j = 1 to 6.
∴ Six rational numbers are as follows:

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.1 Q2
Thus, the six rational numbers between 3 and 4 are
NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.1 Q2.1

Ex 1.1 Class 9 Maths Question 3.
Find five rational numbers between 3/5 and 4/5.
Solution:
Since, we need to find five rational numbers, therefore, multiply numerator and denominator by 6.
NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.1 Q3

Ex 1.1 Class 9 Maths Question 4.
State whether the following statements are true or false. Give reasons for your answers.
(i) Every natural number is a whole number.
(ii) Every integer is a whole number.
(iii) Every rational number is a whole number.
Solution:
(i) True
∵ The collection of all natural numbers and 0 is called whole numbers.
(ii) False
∵ Negative integers are not whole numbers.
(iii) False
∵ Rational numbers are of the form p/q, q ≠ 0 and q does not divide p completely that are not whole numbers.

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.2

The topics and sub-topics in Chapter 1 Number Systems:

    • Number systems
    • Introduction
  • Irrational Numbers
  • Real Numbers And Their Decimal Expansions
  • Representing Real Numbers On The Number Line
  • Operations On Real Numbers
  • Laws Of Exponents For Real Numbers
  • Summary

NCERT Solutions for Class 9 Maths Number System Ex 1.2

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.2 q5

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.2 q6

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.2 q7

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3

The topics and sub-topics in Chapter 1 Number Systems:

  • Number systems
  • Introduction
  • Irrational Numbers
  • Real Numbers And Their Decimal Expansions
  • Representing Real Numbers On The Number Line
  • Operations On Real Numbers
  • Laws Of Exponents For Real Numbers
  • Summary

NCERT Solutions for Class 9 Maths Number System Ex 1.3

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q8

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q9

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q10

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q10.1

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q11

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q12

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q12.1

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q12.2

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q13

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q14

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q15

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q16

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.3 q16.1

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.4

The topics and sub-topics in Chapter 1 Number Systems:

  • Number systems
  • Introduction
  • Irrational Numbers
  • Real Numbers And Their Decimal Expansions
  • Representing Real Numbers On The Number Line
  • Operations On Real Numbers
  • Laws Of Exponents For Real Numbers
  • Summary

NCERT Solutions for Class 9 Maths Number System Ex 1.4

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.4 q1

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.4 q2

NCERT Solutions for Class 9 Maths Number System Ex 1.5

  • Number systems
  • Introduction
  • Irrational Numbers
  • Real Numbers And Their Decimal Expansions
  • Representing Real Numbers On The Number Line
  • Operations On Real Numbers
  • Laws Of Exponents For Real Numbers
  • Summary

NCERT Solutions for Class 9 Maths Number System Ex 1.5

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q1

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q2

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q3

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q4

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q5

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q6

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q7

NCERT Solutions for Class 9 Maths Number System Ex 1.5 q8

NCERT Solutions for Class 9 Maths Chapter 1 Number Systems Ex 1.6

  • Number systems
  • Introduction
  • Irrational Numbers
  • Real Numbers And Their Decimal Expansions
  • Representing Real Numbers On The Number Line
  • Operations On Real Numbers
  • Laws Of Exponents For Real Numbers
  • Summary

Ex 1.6 Class 9 Maths Question 1.
Find:
NCERT Solutions for Class 9 Maths Number System Ex 1.6 Q1
Solution:

NCERT Solutions for Class 9 Maths Number System Ex 1.6 Q1.1

Ex 1.6 Class 9 Maths Question 2.
Find:
NCERT Solutions for Class 9 Maths Number System Ex 1.6 Q2
Solution:
NCERT Solutions for Class 9 Maths Number System Ex 1.6 Q2.1

Ex 1.6 Class 9 Maths Question 3.
Simplify:
NCERT Solutions for Class 9 Maths Number System Ex 1.6 Q3
Solution:

NCERT Solutions for Class 9 Maths Number System Ex 1.6 Q3.1

Number Systems Class 9 Extra Questions Maths Chapter 1

Extra Questions for Class 9 Maths Chapter 1 Number Systems

Class 9 Maths Chapter 1 Extra Questions
Extra Questions For Class 9 Maths Chapter 1
Extra Questions for Class 9 Maths Chapter 1 With Solutions

Class 9 Maths Chapter 1 Extra Qustions with Solutons

Extra Questions for Class 9 Maths Chapter 1
Extra Questions for Class 9 Maths Chapter 1
NCERT Class 9 Maths Chapter 1 Extra Questions
Extra Qusestions for Class 9 Maths NCERT Chapter 1
Class 9 Maths Chapter 1 Extra Questions
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