AP Board Class 8 Maths Chapter 1 Rational Numbers Ex 1.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 8th Maths Chapter 1 Rational Numbers Ex 1.1 Book Answers ~ HSSlive: Plus One & Plus Two Notes & Solutions for Kerala State Board

AP Board Class 8 Maths Chapter 1 Rational Numbers Ex 1.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 8th Maths Chapter 1 Rational Numbers Ex 1.1 Book Answers

AP Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Textbooks Solutions and answers for students are now available in pdf format. Andhra Pradesh Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Book answers and solutions are one of the most important study materials for any student. The Andhra Pradesh State Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 books are published by the Andhra Pradesh Board Publishers. These Andhra Pradesh Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 textbooks are prepared by a group of expert faculty members. Students can download these AP Board STD 8th Maths Chapter 1 Rational Numbers Ex 1.1 book solutions pdf online from this page.

Andhra Pradesh Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Textbooks Solutions PDF

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Andhra Pradesh State Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Books Solutions

Board	AP Board
Materials	Textbook Solutions/Guide
Format	DOC/PDF
Class	8th
Subject	Maths
Chapters	Maths Chapter 1 Rational Numbers Ex 1.1
Provider	Hsslive

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AP Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Textbooks Solutions with Answer PDF Download

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AP State Syllabus 8th Class Maths Solutions 1st Lesson Rational Numbers Exercise 1.1

Question 1.
Name the properly Involved in the following examples.

vii) 7a + (-7) = 0
viii) x + 1𝑥 = 1(x ≠ 0)
ix) (2 x x) + (2 x 6) = 2 x (x + 6)
Solution:
i) Additive identity
ii) Distributive law
iii) Multiplicative identity
iv) Multiplicative identity
v) Commutative law of addition
vi) Closure law in multiplication
vii) Additive inverse
viii) Multiplicative inverse
ix) Distributive

Question 2.
Write the additive and the multiplicative inverses of the following.
i) −35
ii) 1
iii) 0
iv) 79
v) -1
Solution:

Question 3.
Fill in the blanks

Solution:
i) (−125)
ii) (43)
iii) (911)
iv) (67)
v) (34,13)
vi) 0

Question 4.
Multiply 211 by the reciprocal of −514
Solution:
The reciprocal of −514 is −145
( ∵ (−514)×(−145)=1 )
∴ The product of 211 and −145 is
211×(−145)=−2855

Question 5.
Which properties can be used computing 25×(5×76)+13×(3×411)
Solution:
The following properties are involved in the product of
25×(5×76)+13×(3×411)
i) Multiplicative associative property.
ii) Multiplicative inverse.
iii) Multiplicative identity.
iv) Closure with addition

Question 6.
Verify the following
(54+−12)+−32=54+(−12+−32)
Solution:

Question 7.
Evaluate 35+73+(−25)+(−23) after rearrangement.
Solution:

Let x = 1.24⎯⎯⎯
⇒ x = 1.244……. …………………(1)
Here periodicity of equation (1) is 1. So
it should be multiplied by 10 on both
sides.
⇒ 10 x x = 10 x 1.244
10x = 12.44 …………..(2)

Question 8.
Subtract
(i) 34 from 13
(ii) −3213 from 2
(iii) -7 from −47
Solution:

Question 9.
What numbers should be added to −58 so as to get −32 ?
Solution:
Let the number to be add ‘x’ say

∴ −78 should be added to −58 then we will get −32

Question 10.
The sum of two rational numbers is 8 If one of the numbers is −56 find the other.
Let the second number be ‘x’ say
⇒ 𝑥+(−56)=8
⇒8+56=48+56=536
∴ The other number (x) = 536

Question 11.
Is subtraction associative in rational numbers? Explain with an example.
Solution:
Let 12,34,−54 are any 3 rational numbers.
Associative property under subtraction
a – (b – c) = (a – b) – c

∴ L.H.S. ≠ R.H.S.
∴ a – (b – c) ≠ (a – b) – c
∴ Subtraction is not an associative in rational numbers.

Question 12.
Verify that – (-x) = x for
(i) x = 215
(ii) x = −1315
Solution:

Question 13.
Write-
(i) The set of numbers which do not have any additive identity
(ii) The rational number that does not have any reciprocal
(iii) The reciprocal of a negative rational number.
Solution:
i) Set of natural numbers ’N’ doesn’t possesses the number ‘0’.
ii) The rational number ‘0’ has no multiplicative inverse.
[ ∵ 1/0 is not defined]
iii) The reciprocal of a negative rational number is a negative rational number.
Ex : Reciprocal of −25=−52

AP Board Textbook Solutions PDF for Class 8th Maths

Andhra Pradesh Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Textbooks for Exam Preparations

Andhra Pradesh Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Textbook Solutions can be of great help in your Andhra Pradesh Board Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 exam preparation. The AP Board STD 8th Maths Chapter 1 Rational Numbers Ex 1.1 Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 8th Maths Chapter 1 Rational Numbers Ex 1.1 Books State Board syllabus with maximum efficiency.

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