Simplifying Square Roots
Date: 9/4/95 at 19:39:43 From: Anonymous Subject: Math I am in grade 2. Square root of 812?
Date: 9/6/95 at 11:44:7 From: Doctor Ken Subject: Re: Math Hello! Wow, I'm impressed that you know about square roots in grade 2! That's neat. Square roots can be a lot of fun. To take the square root of a number that's not a perfect square, people usually just use a calculator. There is a way to take square roots with a pencil and paper (it looks kind of like long division), and if you're interested we can send it to you. The one thing you can do pretty easily without a calculator is to simplify square roots. For instance, the square root of 24 is 2 times the square root of 6, since 24 = 4 x 6 and 2 squared is 4. Does that make sense? Using a calculator, I find that the square root of 812 is about 28.4956 - Doctor Ken, The Geometry Forum
Search the Dr. Math Library:
Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.