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Ex 1.3, 3 - Estimating product

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Ex 1.3, 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 is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.