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 Watchu know about Order of Operations? 

Answer?
1 25%  25%  [ 15 ]
9 75%  75%  [ 45 ]
Total votes : 60

 Watchu know about Order of Operations? 
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Joined: Thu Jan 20, 2011 12:19 am
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Post Re: Watchu know about Order of Operations?
You only do the ♥♥♥♥ inside of the brackets first, then you move on to multiplication/division.
Once you finish the brackets, it's simple arithmetic. 2(3) is not done before 6/2. You're a chimpanzee if you think otherwise.


Thu Apr 28, 2011 3:30 pm
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Post Re: Watchu know about Order of Operations?
The answer Is 9
6/2*(1+2)=9
6/2*3
3*3
9

If you stick extra brackets in Then you can get 1
6/(2*(1+2))=1
6/(2*3)
6/6
1

This is Simple maths people, how are you getting it so badly wrong?


Thu Apr 28, 2011 4:22 pm
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happy carebear mom
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Post Re: Watchu know about Order of Operations?
Tomaster's a ♥♥♥♥♥♥♥ and forgot that multiplication and division are done at the same time, left to right (as with addition and subtraction).
Thus, 8/4*2 = 4.

EDIT: To be absolutely clear, here's how it goes.


Thu Apr 28, 2011 4:55 pm
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Post Re: Watchu know about Order of Operations?
Duh102 wrote:
Tomaster's a ♥♥♥♥♥♥♥ and forgot that multiplication and division are done at the same time, left to right (as with addition and subtraction).
Thus, 8/4*2 = 4.

EDIT: To be absolutely clear, here's how it goes.

The great Ponylady has spoken the true words of wisdom. He who doesn't is a ♥♥♥♥♥♥♥.


Thu Apr 28, 2011 5:04 pm
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Post Re: Watchu know about Order of Operations?
I wanted to be smart and post the process but I see we're on page 3.


Thu Apr 28, 2011 5:37 pm
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Post Re: Watchu know about Order of Operations?
Someone post some actual interesting math.


Thu Apr 28, 2011 6:55 pm
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Post Re: Watchu know about Order of Operations?
I always thought the definition of e was pretty cool.
e = sum(k = 0 to ∞) 1/k!


Thu Apr 28, 2011 8:49 pm
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Post Re: Watchu know about Order of Operations?
PEMDAS: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction. Parentheses <> Brackets. Brackets are what you use with set notation- ie, a function with a domain of [0, 10]. That's a use of brackets. (1+2) is an example of parentheses.

And it's 9. By the way, when did this issue pop up? It's been all over my Facebook updates and some kid asked our math teacher today to work it out on the board.

6 / 2(1+2)

Step 1: Anything in parentheses (or brackets) is simplified.

6 / 2(3)

Step 2: Anything with an exponent goes through exponentiation. Nothing here has an exponent, so we move on to multiplication and division. They are not separate steps: They are done simultaneously from left to right.

6 / 2 = 3

3(3) or 3 * 3 = 9.


Thu Apr 28, 2011 8:55 pm
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Post Re: Watchu know about Order of Operations?
I agree with the pony and the baby dragon, multiplication/division (and addition/subtraction) is one step that is done from left to right.

How you solve it all depends on where you went to school and how they taught Order of Operations there.

It seems kind of ridiculous that a simple and highly important math concept like this isn't standardized.


Fri Apr 29, 2011 12:02 am
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Post Re: Watchu know about Order of Operations?
dhart5000 wrote:
I agree with the pony and the baby dragon, multiplication/division (and addition/subtraction) is one step that is done from left to right.

How you solve it all depends on where you went to school and how they taught Order of Operations there.

It seems kind of ridiculous that a simple and highly important math concept like this isn't standardized.

It is, PEMDAS isn't debated at all. Ever. People are just stupid.


Fri Apr 29, 2011 12:49 am
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Post Re: Watchu know about Order of Operations?
Here in NZ they teach BEDMAS (Brackets, Exponentials, Multiplication/Division then Addition/Subtraction. I don't see why they don't just have the same Mnemonics, teaching methods, everything basicaly the same either, but it isn't a perfect world.


Fri Apr 29, 2011 1:27 am
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Post Re: Watchu know about Order of Operations?
They all say the same exact thing, so there's no reason why anybody should be getting this wrong.
The major difficulty is of course the lack of a multiplication sign next to the parenthesis, which is confusing. That and some people forgot that bit about multiplication and division being on the same level.


Fri Apr 29, 2011 1:59 am
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Post Re: Watchu know about Order of Operations?
Its nine

Also: (e^(πi))+1=0


Fri Apr 29, 2011 2:54 am
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Post Re: Watchu know about Order of Operations?
Duh102 wrote:
They all say the same exact thing, so there's no reason why anybody should be getting this wrong.
The major difficulty is of course the lack of a multiplication sign next to the parenthesis, which is confusing. That and some people forgot that bit about multiplication and division being on the same level.



Areku approves of this post, and is somewhat distressed by the fact that so many people thought differently.

Folks, you gotta remember that a divison is just a multiplication by a number smaller than 1.


Fri Apr 29, 2011 3:25 am
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Post Re: Watchu know about Order of Operations?
You could also say that subtraction is just adding a negative integer.


Fri Apr 29, 2011 3:48 am
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