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Ex 5.1, 1 What will be the unit digit of the squares of the following numbers? (viii) 99880Unit digit of 998802 = Unit digit of 02 = Unit digit of 0 = 0 ∴ Unit digit of square of 99880 = 0

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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 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.