Download Article Download Article Calculating square root is easy if you have a perfect square. If you don’t, there’s a logical process you can follow to systematically figure out the square root of any number, even if you don’t use a calculator. You will need to understand basic multiplication, addition, and division first, though.[1]
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Advertisement About This ArticleArticle SummaryX To find a square root of a number without a calculator, see if you can get to that whole number by squaring smaller numbers, or multiplying a smaller number by itself. If the number is a perfect square, you will get a whole number as the square root. Otherwise, try squaring numbers with a decimal until you get as close as possible to your original number. If you want to learn how to estimate the square root of imperfect squares, keep reading the article! Did this summary help you? Thanks to all authors for creating a page that has been read 573,975 times. Did this article help you?What does √ mean on a calculator?The radical symbol √ is used to indicate the square root. For example, √16 = 4.
How do you use √?For example, if we need to find the square root of 81, we should type 81 in the calculator and then press the symbol √ to get its square root. We will get √81 = 9.
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