User talk:Nayilahmad

How to square root to one decimal place without using a calculator.
First choose a number eg:234 Then find the two square numbers between that chosen number: 15 and 16 Next find the squares of these numbers which are: 225 and 256 Take the squares away: 256-225=31 Divide this number by 100: 100/31=3.22 Divide it by 100 again:3.22/100=0.032 This number is now how much it will go up from 15-16 for every number between 225-256. Take your number away from the higher square: 234-225=9 Multiply this number by your decimal answer form above: 9*0.032=0.288 add this number onto your lowest square: 0.288+15=15.288=15.3(rounded to one decimal place) The answer in the calculator is 15.29 because I didn't leave the decimal places in 3.22 but the answer is the same and this method absolutely works and although looks like hard work for easy numbers it will be worth using for harder numbers when you are not able to use a calculator.