Question

what will be the units digit of the square of the number 39 and how ​

Answer 1

Answer:

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Answer 2

Answer:

Unit digit of multiplication of 2 numbers is obtained by taking the last digit of the multiplication of two numbers i.e. the digits in the unit place

Units digit of 39×39  is obtained by taking the last digit of 9×9=81

⇒ Unit digit of square of 39 is 1.

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