Find the square roots of the following decimal numbers.

84.64

Given, a decimal number as 84.64.

We need to find out the square root using division method

Step 1: Pair the given digit number, starting from units place to left as 84 and 64

Step 2: Find the largest number whose square is less than or equal to the first pair or single digit from left.

Step 3: Subtract the resulted value 81 from the given number

Step 4 : Bring down the second pair .64 to the right of the remainder

Step 5: double the quotient 9 + 9 = 18

Step 6: Guess the possible value such that the product is equal to or less than new dividend

Hence, the square root of 84.64 is 9.2