How do I find the square root of 625? - Answers

Estimate it. If your estimate is too high, its square will be higher than 625. If too low, it will be lower.For example, it's greater than 20 because 202 = 400, and it's smaller than 30 because 302 = 900.Take it from there. THATS THEIR ANSWERNOW FOR MINEOk, so if you have a calculator then just key in √ and then 337I don't know how to get the exact answer without the calculator but I can estimate the the answer to two decimal places. if you can't have a calculator you work out which two square numbers are closest above and below your total. I will find the square root of 337i.e 18x18=324 19x19=361so we know now that the answer will be 18.(something) because the square root is in between 18 and 19now, to accurately estimate you take 324 from 361 which equals 37to see if the first decimal place is higher or lower then 5 you divide 37 by 2: 37÷2=18.5add this to 324 if the total comes over or at 337 we know that the first decimal place will be under five324+18.5= 342.5so no we've narrowed the answer down to 18.(something below five)now we do the same as before but to find whether the the decimal place will be higher or lower than .25but as we already know the difference between the two numbers is 18.5 so we just half it = 9.25 and add 9.25 to 324324+9.25= 333.25Now we've got some boundries and can make an educated estimate as too the answer1.we know the answer is 18.(something)2. we know the ."something" is below 53. we know it is higher than .254 we know it is closer to .25 than .5So personally I would put the answer as 18.35It's just an estimate sorry I haven't been taught how to get the exact answer!(sorry if I'm wrong or it isn't explained well, i'm only 13)PS. the real answer is: 18.3575597506858 --- I was pretty close