Fastest Trick to find Square Root of Numbers less than 100!!!

The average of all odd numbers less than 100 is:

Suggest a universal set for the set given below. A = {Even numbers less than 100} B={Odd natural numbers less than 100 in natural numbers }

Find the greatest number of five digits which is a perfect square. Also find the square root of the number of obtained.

The square root of a positive number less than 100 lies between:

Square Root|Mrthod To Find Square Root Of A Given Numbers|Repeated Subtraction Method

The difference between the greatest and least prime numbers which are less than 100 is: