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Instant Math
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Hello,Would you please clarify the reason and use of parenthesis in answers to equations, roots, etc. Recently I used them and I was incorrect.Thanks,Cynthia
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Cynthia121

by Cynthia121 at August 26, 2010

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It is part of PEMDAS- Please Excuse My Dear Aunt Sally Example: 3/2+3 is different from 3/(2+3). The first answer is 4.5; the second answer is 3/5.
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yankeekid yankeekid August 26, 2010

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I agree with yankeekid. PEMDAS is the method of remembering the 6 steps. Parentheses, Equations, Multiplication, Division, Addition, and Subtraction or as everybody likes to call it: Please Excuse My Dear Aunt Sally.
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ChromeRedCat ChromeRedCat September 01, 2010

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