answersLogoWhite

0


Best Answer

For simplicity, let's take a four digit number 4096

Starting at the right, mark off the digits in pairs: 40'96

The highest number whose square does not exceed 40 is 6 so deduct its square from 40, leaving 4, now bring in the 96 making 496. 6 is the first digit of the solution

Add another 6 to the 6, making 12, but call it 120. Now find a number you can add to 120 and multiply that by your new number to make 496. This number is 4 which works out exactly so the square root of 4096 is 64.

I bet you're glad you asked!

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you find the square root of a number without using guess and check or a calculator?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Online Punnett Square Calculator?

It is not on-line. But you can check - Bifido Punnett Square Calculator


How do you find the square of a root number?

to find the square root of a number you can use the guess and check method which is kind of complicated to explain with just words but i will answer soon and try searching for "How to do the Guess and Check Method" on Google.com or Bing.com by Microsoft or Ask.com To find the square root of a number with a calculator you hit the weird division thingy... after the number/ before the number depending on type of calculator.


Is sixty six a Square number?

No. Easiest way to check is to simply do the square root of 66 on your calculator. even typing it into google should give you the answer. Square root of 66 = 8.12 or so.


What number is r on a calculator?

There is no such number on a calculator. If you see "R" on a calculator, it is probably some calculation - for example, conversion from polar to rectangular coordinates. Check the manual for your calculator.


What is the equation for finding the square root of a number?

To find the square root of a number, take that number to the one-half power. Ex: 4^1/2 = 2 The best way to find a square root is simple guess and check. Because not all square roots are whole numbers, it is advisable to use either a calculator or square root table to find more complicated square roots. Give the Square Root Calculator a try: http://www.calculatorslive.com/Square-Root-Calculator.aspx


How do you use the square root on calculator?

type in the number u want to find the square root of, then press the button with y over a check mark and x next to the check mark, then press 2 and hit = and there u goes! :P


What is 514214542 plus 333333333?

847547885 - without using a calculator !you should check this out ans, should be 847587875 again without calculator


How do you check whether a number is a square number?

if it's square root is an integer, it is a square number.


Whats the square root of 1144?

33.8 P.S. you can just use an online calculator and they have a square rooter thing on it. It looks like a check mark.


How do you solve 3 divided by 387?

0.0078


What is the smallest whole number you need to multiply 350 by to get a square number?

To solve this I put the function x2/350 into Y1 of my graphing calculator. I then went to the table screen (2nd graph button) and scrolled down searching for the first whole number.I believe your answer is 14.check:350x 14 = 4,900702=4,900 (square number)


Square root of 0.16?

0.4 to find on a calculator: type in 0.16 then press the button that looks like a check mark.