Find the number from the following. 5 . 0 × 10 11

Given number is 5 . 0 × 10 11 We know that x n means that the number x is multiplied by itself n - times. ∴ 5 . 0 × 10 11 = 5 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 Hence, 5 . 0 × 10 11 = 500 , 000 , 000 , 000

Find the number from the following. 1 . 385 × 10 5

Given number is 1 . 385 × 10 5 Now, 1 . 385 × 10 5 = 1385 1000 × 10 5 = 1385 10 3 × 10 5 = 1385 × 10 5 - 3 ∵ a m ÷ a n = a m - n = 1385 × 10 2 We know that x n means that the number x is multiplied by itself n - times. ∴ 1 . 385 × 10 5 = 138500

Find the number from the following. 8 × 10 12 + 7 × 10 9 + 6 × 10 8 + 5 × 10 6 + 4 × 10 4 + 3 × 10 3 + 2 × 10 + 1

Given number is 8 × 10 12 + 7 × 10 9 + 6 × 10 8 + 5 × 10 6 + 4 × 10 4 + 3 × 10 3 + 2 × 10 + 1 This number is given in the expanded form. Here the number is shown as a sum of each digit multiplied by its place value. ∴ 8 × 10 12 + 7 × 10 9 + 6 × 10 8 + 5 × 10 6 + 4 × 10 4 + 3 × 10 3 + 2 × 10 + 1 = 8 × 10 12 + 0 × 10 11 + 0 × 10 10 + 7 × 10 9 + 6 × 10 8 + 5 × 10 6 + 0 × 10 5 + 4 × 10 4 + 3 × 10 3 + 0 × 10 2 + 2 × 10 + 1 Hence, ∴ 8 × 10 12 + 7 × 10 9 + 6 × 10 8 + 5 × 10 6 + 4 × 10 4 + 3 × 10 3 + 2 × 10 + 1 = 800765043021

Find the number from the following. 6 . 275 × 10 10

Given number is 6 . 275 × 10 10 Now, 6 . 275 × 10 10 = 6275 10 3 × 10 10 = 6275 × 10 10 - 3 ∵ a m ÷ a n = a m - n = 6275 × 10 7 We know that x n means that the number x is multiplied by itself n - times. ∴ 1 . 385 × 10 5 = 62 , 750 , 000 , 000

Find the number from the following. 1 . 00080001 × 10 20

Given number is 1 . 00080001 × 10 20 Now, 1 . 00080001 × 10 20 = 10080001 10 7 × 10 20 = 10080001 × 10 20 - 7 ∵ a m ÷ a n = a m - n = 10080001 × 10 13 We know that x n means that the number x is multiplied by itself n - times. ∴ 1 . 0080001 × 10 20 = 100 , 080 , 001 , 000 , 000 , 000 , 000

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I Did It>Chapter 4 - Exponents>Exercise 4.3

Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Exponents, Exercise 5: Exercise 4.3

Author:Vaishali Bhatia & Rupesh Pathak

Vaishali Bhatia Mathematics Solutions for Exercise - Vaishali Bhatia and Rupesh Pathak Solutions for Chapter: Exponents, Exercise 5: Exercise 4.3

Attempt the free practice questions on Chapter 4: Exponents, Exercise 5: Exercise 4.3 with hints and solutions to strengthen your understanding. I Did It solutions are prepared by Experienced Embibe Experts.