Find 9 by repeated subtraction method.

Repeated Subtraction is a method that subtracts the equal number of items from a group, also known as division. Using this method, the same number is subtracted repeatedly from another larger number until the remainder is zero, or smaller than the number being subtracted. The steps to find the square root of 9 is: 9 – 1 = 8 . 8 – 3 = 5 . 5 – 5 = 0 . The result “ 0 ” is obtained in the 3 rd step. Hence, the square root of 9 is 3 .

Find the values of: 3 . 1428 and 0 . 31428 correct to three decimal places.

Long division method is also used to find approximate square roots of numbers or decimals up to certain decimal places. Below are the steps that needs to be followed to find the square root of a number that have numbers after decimal point: 1. Place a suitable number of a pair of zeros after the decimal point. 2. Now find the square root of the number using long division method. Please refer to video to see the long division method to find the square root. 3. After that round off the quotient. 1 . 7 7 1 3 . 14 28 1 ↓ 27 2 14 1 89 ↓ 347 2528 2429 99 and 0 . 5 6 0 0 0 . 31 42 8 0 ↓ 5 0 31 25 106 642 636 6 So, the value of the given numbers will be 1 . 77 and 0 . 560 .