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Ex 1.3, 3 - Estimating product

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Question 3 Estimate the following products using general rule: Make four more such examples. (a) 578 × 161578 × 61 By general rule 578 is rounded off to 600 161 is rounded off to 200 Estimated Product = 600 × 200 = 6 × 100 × 2 × 100 = (6 × 2) × 10000 = 120000 ∴ Estimated product = 1,20,000

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.