Ex 11.1, 8 - Compare the numbers (i) 2.7 × 10^12 ; 1.5 × 10^8 - Ex 11.1

part 2 - Ex 11.1, 8 (i) - Ex 11.1 - Serial order wise - Chapter 11 Class 7 Exponents and Powers

part 3 - Ex 11.1, 8 (i) - Ex 11.1 - Serial order wise - Chapter 11 Class 7 Exponents and Powers

 

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Ex 11.1, 8 (Method 1) Compare the following numbers: (i) 2.7 × 1012 ; 1.5 × 108 2.7 × 1012 = 27/10 × 1000000000000 = 27 × 100000000000 = 2700000000000 1.5 × 108 = 15/10 × 100000000 = 15 × 10000000 = 150000000 Since 2.7 × 1012 has more digits It is greater So, 2.7 × 1012 > 1.5 × 108 Ex 11.1, 8 (Method 2) Compare the following numbers: (i) 2.7 × 1012 ; 1.5 × 108 2.7 × 1012 ⎕ 1.5 × 108 Comparing powers of 10 1012 > 108 ∴ 2.7 × 1012 > 1.5 × 108

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo