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Last updated at Aug. 31, 2021 by Teachoo
Transcript
Ex 6.1, 1 What will be the unit digit of the squares of the following numbers? (i) 81We know that Unit digit of square of any number will be the unit digit of its last digit Unit digit of 812 = Unit digit of 12 = Unit digit of 1 = 1 ∴ Unit digit of square of 81 = 1
Properties of square numbers
Properties of square numbers
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