Question

what will be the unit digit of the square of 81?​

Answer 1

Answer:

hi mate it will be 1.

hope it helps u

Answer 2

The unit digit of square of any number depends on the unit digit of that number , here it is 1 , and the square of 1 is equal to 1 , therefore the unit digit in the square of 81 will be 1

Please thank this answer if you had understood