Teacher2Teacher 
Q&A #3880 
View entire discussion [ next >>]
From: constantino totis <ctotis@hotmail.com> To: Teacher2Teacher Public Discussion Date: 2002030119:55:48 Subject: a simple method to approximate square roots well, I first daw the method I am about to describe in a public library in San Antono, texas. First remember that if x to the second power equals, say, 10 I have to find two numbers that multiplied by themselves equal ar approach 10: 3*3=9 4*4= 16 Therefore sqr (10) is between 3 and 4; and offcourse, closer to 3. This is a first approximation (and I donīt know what grade is your child in). Always emphasize the use of a diagram; start asking questions like: If a have a 100sq. ft. lot, what are its dimensions? I hope you will find this useful. You can also use the Newtonīs method , which involves algebre, and it permits to obtain very good approximations to the square roots of numbers which arenīt too large. Good, luck and If you find it useful, please let me know CONSTANTINO TOTIS
Post a reply to this message

[Privacy Policy] [Terms of Use]
Math Forum Home 
The Math Library 
Quick Reference 
Math Forum Search