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October 21, 2014

October 21, 2014

Posted by **Meherin** on Thursday, March 13, 2008 at 8:53pm.

Evaluate: 9 + (8-2)^2 x 20 / 5

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**Ms. Sue**, Thursday, March 13, 2008 at 8:57pm9 + (8-2)^2 x 20 / 5

9 + 36 * 20/5

9 + 36 * 4 = ??

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**Meherin**, Thursday, March 13, 2008 at 9:08pmoh i thought it went like this:

9+(8-2)^2x20/5

9+6^2*20/5

9+36*20/5

9+720/5

9+144=153

u c, my math teacher told me to do it in these steps:

1)do all parantheses first

2)exponents next

3)do all multiplication and division, IN ORDER FROM LEFT TO RIGHT

4)do all addition and subtraction, IN ORDER FROM LEFT TO RIGHT

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**Writeacher**, Thursday, March 13, 2008 at 9:05pmHere's a good explanation of the order of operations and how to remember them -- for your future problems -- using PEMDAS as a mnemonic:

http://www.purplemath.com/modules/orderops.htm

=)

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**Meherin**, Thursday, March 13, 2008 at 9:11pmmy math teacher told me not to:

1)do all parantheses

2)exponents next

3)do all multiplication and division, IN ORDER FROM LEFT TO RIGHT

4) do all addition and subtraction, IN ORDER FROM LEFT TO RIGHT

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**Meherin**, Thursday, March 13, 2008 at 9:11pmthose are the steps i m supposed to use, i just wanted to make sure

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