

04212011, 02:43 PM

#1

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Join Date: May 2006
Posts: 7,903

Math question(simple)
48÷2(9+3) = ?
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04212011, 03:32 PM

#2

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Re: Math question(simple)
I'm saying 288. So's Matlab.
That said, the notation is awful... it proves a point but this is the reason why you never see the ÷ sign in "proper" equations and brackets exist for a reason! While there is a "right" answer to this, I think it shows that if it looks ambiguous, put brackets...
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04212011, 04:06 PM

#3

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Re: Math question(simple)
Order of Operations
Some might argue that the multiplication 2(9+3) should happen before the division preceding it (result of the total equation would therefore be 2), but that is incorrect.
288 is the correct answer.
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04212011, 04:51 PM

#4

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Posts: 258

Re: Math question(simple)
PEMDAS
Parentheses
Exponent
Multiply
Divide
Add
Subtract
The Correct Answer Is 288
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04212011, 06:18 PM

#5

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Re: Math question(simple)
288 is the correct answer. Someone posted this on another forum and they are still arguing over there about whether it's 2 or 288.
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04212011, 06:20 PM

#6

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Re: Math question(simple)
Quote:
288 is the correct answer. Someone posted this on another forum and they are still arguing over there about whether it's 2 or 288.

It seems like a moot point to me  the fact that it's causing so much controversy shows the main point  in situations like this, use brackets to show exactly what you mean otherwise people will get confused!
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04212011, 06:29 PM

#7

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Re: Math question(simple)
when I type this into my phone as it appears here, 48÷2(9+3). it automatically inserts the 'multiplication' symbol, 48÷2x(9+3). and answers 288.
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04212011, 06:36 PM

#8

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Re: Math question(simple)
Well, that's why we have the orders of operations. Part of the problem is that many of us were taught in school that multiplication has higher priority over division, but that is incorrect: Division is merely multiplication of the reciprocal of the number, so it carries the same weight, as it were, as multiplication.
On the same token, subtraction is the addition of a negative number.
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04212011, 08:09 PM

#9

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Re: Math question(simple)
Quote:
Originally Posted by Dngrsone
Well, that's why we have the orders of operations. Part of the problem is that many of us were taught in school that multiplication has higher priority over division, but that is incorrect: Division is merely multiplication of the reciprocal of the number, so it carries the same weight, as it were, as multiplication.
On the same token, subtraction is the addition of a negative number.

Exactly, that's why people were getting 2 I think. Apparently what I posted is sweeping the internet as a controversial topic. I thought you guys would all get it right though, haha.
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04212011, 08:23 PM

#10

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Join Date: Nov 2006
Posts: 3,629

Re: Math question(simple)
Knowing your major I figured this would be a crazy difficult question. If I can solve it, I'd think anybody could  I suck at math (But got the right answer).
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