Question

what will be the unit digit of the square of the following number. no 1. 81 please explain it friends nice ly​

Answer 1

$\red{hello}$

$In\:this\: Question,\:we\:have\: to\:find \:the unit\:digit\:of\:the\:number\:81$

In the number ,the unit digit is 1.

so , if we multiply the unit digit of the number we will get the unit digit of the square of the number.

$\bold{\boxed{1 × 1 = 1}}$

hence,the unit digit of the square of 81 is 1.

Answer 2

UNIT DIGIT OF THE SQUARE 81 IS ITSELF..

BECAUSE ITS mathematical Law.

☝Hope its help u ☝

✌Mark brainlist✌