Group 3 Math. GROUP 3 Math. Group 3 math. 

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Group 3 math. Home. New Release. DVD. Search. Your Text. 

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Finding   Square   Roots  W/o  Calculator

In  our   presentation   we   will   show   and   demonstrate   how   to   find   the   square   root   of  a  number   without   the   use   of  a  calculator .

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Hundreds  of cash-stripped contestants accept an invitation to compete in children's games for a  tempting prize, but the stakes are deadly

In 1980s Indiana, a group of young friends witness supernatural forces and secret government exploits. As they search for answers, the children unravel a series of extraordinary  mytteries

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Take a guess at it, and use the process of elimination. It's tougher to figure out square roots of numbers that  are not whole. But it's possible. Let's say you want to find the square root of 20. You know that 16 is a perfect square with a square root of  4 (4X4=16). Similarly, 25 has a square root of 5 (5X5=25), so the  square root of 20 must fall in between. You could  guess that 20's square root is 4.5. Now,  simply square 4.5 to check your guess. That  means you multiply it by itself; 4.5X4.5. See if the answer is above or below 20. If the guess seems off, simply try another guess (maybe 4.6 or 4.4) and refine your guess until you hit  20. [4] For example, 4.5X4.5 = 20.25, so logically you should try a smaller number, probably 4.4. 4.4X4.4 = 19.36. Thus, the square root of 20 must lie in between 4.5  and 4.4. How about 4.445X4.445, That's 19.758. It's closer. If you keep trying different numbers using this process, you will  eventually get to 4.475X4.475 = 20.03. Rounding off, that's 20.

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