Question

How can we know that a number is a square of which number ??
what's the method ?
plz let me know fast !!​

Answer 1

Long division method is the correct method to know the square root of the number.

Answer 2

FOR NO.'S ENDING WITH 5, UNITS DIGIT CAN BE ANY , IF UNITS DIGIT IS DIFFERENT,PUT THAT NO. INSTEAD OF 7.

MY TEACHER TOLD ☝️

U SHOULD GO WITH LONG DIVISION METHOD , IT IS EASIER