Ex 5.3, 1 (iv) - Chapter 5 Class 8 Squares and Square Roots

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Ex 5.3, 1 What could be the possible ‘one’s’ digits of the square root of each of the following numbers? (iv) 657666025We know that If a number ends with 5 if square root can end with 5 ∴ Possible unit digits = 5 Rough 5^2 = 25 15^2 = 125 ∴ √25 = 5 √125 = 15

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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