RBSE Solutions for Class 8 Maths Chapter 3 Powers and Exponents Ex 3.3

RBSE Solutions for Class 8 Maths Chapter 3 Powers and Exponents Ex 3.3 is part of RBSE Solutions for Class 8 Maths. Here we have given Rajasthan Board RBSE Class 8 Maths Chapter 3 Powers and Exponents Exercise 3.3.

Board	RBSE
Textbook	SIERT, Rajasthan
Class	Class 8
Subject	Maths
Chapter	Chapter 3
Chapter Name	Powers and Exponents
Exercise	Exercise 3.3
Number of Questions	3
Category	RBSE Solutions

Rajasthan Board RBSE Class 8 Maths Chapter 3 Powers and Exponents Ex 3.3

Question 1.
Change In the standard form
(i) 128000000
(ii) 1680000000
(iii) 0.0005
(iv) 0.00000017
(v) 0.000000000397
(vi) 0.00000004358
Solution
(i) 128000000
= 1.28 x 100000000
= 1.28 x 10⁸
(ii) 1680000000
= 1.68 x 1000000000
= 1.68 x 10⁹

Question 2.
Express the following numbers in normal form
(i) 4 × 10⁹
(ii) 245 × 10⁷
(iii) 5.61729 × 10⁷
(iv) 8.5 × 10^-6
(v) 3.02 × 10^-6
(vi) 7 × 10^-4
Solution
(i) 4 x 10⁹ = 4 × 1000000000
= 4000000000
(ii) 245 × 10⁷
= 245 x 10000000
= 2450000000
(iii) 5.61729 × 10⁷
= 5.61729 × 10000000
= 56172900

Question 3.
Change the numbers In standard form of the following statements
(i) Diameter of the(RBSESolutions.com)thickness of human hair is 0.0002 cm approx.
(ii) Charge on an electron is 0.000,000,000,000,000,00016 coulomb.
(iii) 1 Micron = [latex]\frac { 1 }{ 1000000 }[/latex] metre.
(iv) Thickness of a paper = 0.0016 cm.
Solution
(i) 0.0002

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