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# Math: 6÷2(1+2) = ?

Anonymous Coward
User ID: 718184
United States
12/15/2012 03:49 AM
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Re: Math: 6÷2(1+2) = ?
6÷2(1+2) PEMDAS
1st 1+2=3 as in 6/2 (1+2)
2nd 2*3=6 as in 6/2*3
3rd 6/6=1 as in mother fucking one. How did this go 90 pages?
1 goddammit now everyone shut the fuck up.
What is 2+3*(0-2(6-5))?
Quoting: Anonymous Coward 718184

Wrong! You don't do 2*3. 6/2 first. Then multiply that by 3.

2+3*(0-2(6-5)) = -4

2+3*(0-2(1))

2+3*(0-2)

2+3*(-2)

2+(-6)

-4
Quoting: Anonymous Coward 29920563

Wait You are right My bad. Sorry apparently PEMDAS is just stupid and my high school teachers are fucking retarded.
and yeah its -4.
Can you figure this one out? [link to thinkzone.wlonk.com]
baba109

User ID: 29854902
United States
12/15/2012 09:06 AM
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Re: Math: 6÷2(1+2) = ?
Isn't 6÷2(1+2) the same as saying 6 is divided by everything behind the division symbol such as: 6/2(1+3)

6
___ =

2(1+3)

6
___
2(3) or 2*3

6
_ = 1

6

If you are getting the answer 9, it seems that you are forgetting to simplify. For example: 6÷2*3 is not 3*3, it's 3÷3 or 3/3. When you look at it as a fraction, it should become easier.

6÷2(1+2)same as 6/2(1+2)
6÷2*3 same as 6/2*3
6÷6 same as 6/6. Note: You don't divide 6 by 2 first. Multiply 2 and 3 first then divide. Order of operation still apply.

If you are getting 12 or -4, I don't know what the fuck you are doing.
Anonymous Coward
User ID: 29205767
Israel
12/15/2012 09:08 AM
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Re: Math: 6÷2(1+2) = ?
2
Anonymous Coward
User ID: 29698498
United States
12/15/2012 09:13 AM
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Re: Math: 6÷2(1+2) = ?
9
Jasper

User ID: 29953392
United Kingdom
12/15/2012 09:20 AM
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Re: Math: 6÷2(1+2) = ?
is this why the economy is fucked?
:killerglp2:
Anonymous Coward
User ID: 1268952
Brazil
12/15/2012 09:23 AM
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Re: Math: 6÷2(1+2) = ?
6÷2(1+2)

6/2(3)

6/2*3

1

That´s basic math.
Anonymous Coward
User ID: 1725984
United States
12/15/2012 09:42 AM
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Re: Math: 6÷2(1+2) = ?
Let me call my uncle, he's good at math.
Anonymous Coward
User ID: 3416859
Japan
12/15/2012 09:46 AM
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Re: Math: 6÷2(1+2) = ?
Can some one give me some cliffs? I don't want to read 90+ pages to figure this out.
salwensko

User ID: 29958477
Brazil
12/15/2012 09:56 AM
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Re: Math: 6÷2(1+2) = ?
salwensko
Spiritfilled1111

User ID: 27438484
12/15/2012 09:57 AM
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Re: Math: 6÷2(1+2) = ?
SOLUTION = 9

BECAUSE ORDER OF OPERATIONS:

FIRST PARANTHESES: 1 + 2 = 3

NOW YOU GO LEFT TO RIGHT

SECOND 6 / 2 = 3 (BECUASE ITS ON THE LEFT SIDE)

THIRD 3 * 3 = 9

SOLUTION = 9

Spiritfilled1111
Anonymous Coward
User ID: 31006720
Germany
12/30/2012 06:17 AM
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Re: Math: 6÷2(1+2) = ?
schiehallion

User ID: 31138050
United Kingdom
12/30/2012 07:07 AM
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Re: Math: 6÷2(1+2) = ?
Brackets Orders Divide Multiply Add Subtract

I'm going with 9.
And so does Wolfram Alpha

scottish, british, european but first of all Human. Even this is not true. I am Spirit appearing to be solid, just like all life everywhere
MrPaul

User ID: 31076171
South Africa
12/30/2012 07:16 AM
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Re: Math: 6÷2(1+2) = ?
PEMDAS / BODMAS / whatever is just wrong...

You don't have to do brackets first, you can leave them for later. You just can't do much with them until you solve them, or for example use the distribution rule.

Same with exponents. They are separate units of the problem and cannot interact with other parts of the problem. In most cases the best plan of attack simply is brackets, exponents, etc.

Also, addition does not take precedence over subtraction (it is the same thing) and multiplication does not take precedence over division (same thing). Subtraction is just adding a negated number and division is multiplying an inverted number.

So it should be PEMA, but better yet nothing and just an understanding of what parts of a problem can interact with each other and how.

It is LEFT TO RIGHT otherwise the meaning of subtract and divide changes. If you don't have subtract/divide the order doesn't matter either!

Addition/subtraction is on a higher level than multiply/divide simply by convention so we save on the number of brackets we need to use.

So... if you want to do the distributive thing you need to do 6/2 first:
3*(1+2) = 3 + 6 = 9 !

The problem is a trick because it intuitively (for me at least, at first glance) made me see 6/(2(1+2))=1. Somehow the omission of the * operator glues the 2 tighter to the (1+2) than it should... or perhaps that is a very valid convention too.. implicit brackets around a multiply without the * operator...?

These are CONVENTIONS to allow for single line equations. If you work with multi line equations there is no confusion:

6
------- = 1
2*(1+2)

6
- * (1 + 2) = 9
2

Of course if you use a different convention then you are also right!

Last Edited by Deplorable Me on 12/30/2012 07:19 AM
Anonymous Coward
User ID: 31098667
United States
12/30/2012 07:39 AM
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Re: Math: 6÷2(1+2) = ?
is this why the economy is fucked?
Quoting: Jasper

Order of operations in arithmetic is like grammar in language. See how many people think conventions have nothing to do with the expression of thought - as if rules somehow stifle the possibility of actually getting their point across, or misuse is somehow more creative.

It is easy to see, in a simple equation, the resulting confusion. A careful mathematician would avoid writing something like that without specifying the protocols.

Imagine a course in Creative Accounting. The goal, of course, would not be self expression.
It would be to create profit.
Anonymous Coward
User ID: 19505114
Australia
12/30/2012 07:50 AM
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Re: Math: 6÷2(1+2) = ?
Alright, there's a lot of self-proclaimed experts around these parts. Let's see how your logic holds up against some basic mathematics.

6÷2(1+2) = ?

I'll give two hints. This is NOT a trick question, and there is only 1 correct answer.

All tools used for computation are fair game.

(Yes, I saw this somewhere else and decided to post it here.)

Best of luck to all you geniuses .
Quoting: Syrius

4.5.... parentheses (1+2)=3+6=9 divided/2=4.5
Very easy
User ID: 21495402
12/30/2012 03:45 PM
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Re: Math: 6÷2(1+2) = ?
Actually this is wrong.... The correct term for the order of operations is not PEDMAS it is BEDMAS which stands for:

so the solution would be

6/2(1+2)

Do brackets first:
6/2(3)

then exponents:
there isnt any so this step can be skipped

then division:
6/2(3)=
3(3)

then multiplication
3*3=9

so for 2+3*(0-2(6-5)) would equal, starting with the left bracket first:

2+3*(-2(1))=
2+3*(-2)=
2 + (-6)=

ncbc
User ID: 31275122
United States
01/01/2013 11:30 AM
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Re: Math: 6÷2(1+2) = ?
there are (3) mathematical equations to be solved in this problem. First, you must do the equation in parentesis (1+2). This can only equal 3. So you move to the left. Then by moving left, the Second equation to be solved is the multiplication (2 x (1+2)). This can only equal 6. Finally, the third equation to be solved includes dividing the previous solution of the first two equations (as denominators) into 6. That leaves the equation to be solved as (6 divided by 6) Therefore, the answer to this problem can only be 1; NOT 9. No wonder our kids are failing math in school.
Anonymous Coward
User ID: 22639408
United States
01/01/2013 11:50 AM
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Re: Math: 6÷2(1+2) = ?
If you didn't answer 1 you're clinically retarded...
Jasper

User ID: 31271800
United Kingdom
01/01/2013 11:59 AM
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Re: Math: 6÷2(1+2) = ?
:killerglp2:
{parhelion}
User ID: 30992481
United States
01/01/2013 12:59 PM
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Re: Math: 6÷2(1+2) = ?
1

xcuse my dear aunt sally!!!!
Anonymous Coward
User ID: 30992481
United States
01/01/2013 01:01 PM
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Re: Math: 6÷2(1+2) = ?
NO

look!

Actually this is wrong.... The correct term for the order of operations is not PEDMAS it is BEDMAS which stands for:

so the solution would be

6/2(1+2)

Do brackets first:
6/2(3)

then exponents:
there isnt any so this step can be skipped

then division:
6/2(3)=
3(3)

then multiplication
3*3=9

so for 2+3*(0-2(6-5)) would equal, starting with the left bracket first:

2+3*(-2(1))=
2+3*(-2)=
2 + (-6)=

Quoting: Very easy 21495402
caper26
User ID: 32057798
01/13/2013 12:36 AM
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Re: Math: 6÷2(1+2) = ?
First I will explain. I didn't any of the previous posts, no need. Here is what you do:
Distribute 2 into the parentheses. Why? because it is a factor of the original terms INSIDE them, and cannot be ripped apart. I will show you why:
6 = 4+2 = 2(2+1) = 2(3) The 2 is a common factor of 4 & 2.
No matter which way you view it, the value 6 MUST maintain its value. Just as you cannot take the 4 from (4+2) and divide it into a number with the "+ 2". I cannot take the 2 from 2(2+1) and divide it into another number without the (2+1).
You ARE allowed to distribute before division, or any other operator, since you are allowed to simplify any equation first. There are MANY references which state "Remove parentheses by distribution" Try Googling that as a search term.
6÷2(2+1) = 6÷(4+2) = 1
Now, some people have argued that you don't NEED to distribute the 2; you just add the 2+1, and end up with 2(3). Then they go on the say that this is the same as 2*(3). WRONG! You STILL have parentheses and STILL need to distribute that 2 inside them, for the reasons discussed about factoring above. Therefore you have this:
6÷2(3) and must distribute like this:
6÷2(3+0) = 6÷[2(3) + 2(0)] = 6÷6 = 1
These people who get 9 try and rip the 2 away from the parentheses by inserting a times symbol like this:
6÷2*(3), and then do the division of 6÷2 first. I explained the illegalities of doing this, since the 2 is a factor of the 2+1.
Lastly, 6÷2 is NOT (6/2), as in (6/2)(2+1). This is totally incorrect, since it lacks that parentheses in the original equation. Check any online or written text. Leading fractions as a coefficient ALWAYS have ( ) around them.
I hope this clears things up.
Regards.
Anonymous Coward
User ID: 32084555
Malaysia
01/13/2013 12:45 AM
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Re: Math: 6÷2(1+2) = ?
6
____
2(3)
Anonymous Coward
User ID: 32084555
Malaysia
01/13/2013 12:50 AM
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Re: Math: 6÷2(1+2) = ?
6
____
2(3)
Quoting: Anonymous Coward 32084555

6
_ -> 3
2

1 3
- <- -
2 6
Anonymous Coward
User ID: 27174350
01/13/2013 12:55 AM
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Re: Math: 6÷2(1+2) = ?
First time seeing this and I'm not a number fucker but these answer is clearly 9 why is there so many pages.... Bunch a fuckin dummies out there
Anonymous Coward
User ID: 32084555
Malaysia
01/13/2013 12:57 AM
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Re: Math: 6÷2(1+2) = ?
6
____
2(3)
Quoting: Anonymous Coward 32084555

6
_ -> 3
2

1 3
- <- -
2 6
Quoting: Anonymous Coward 32084555

(1/2(6)3), 1|3 <-> 2|6
Anonymous Coward
User ID: 32084555
Malaysia
01/13/2013 01:01 AM
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Re: Math: 6÷2(1+2) = ?
6
____
2(3)
Quoting: Anonymous Coward 32084555

6
_ -> 3
2

1 3
- <- -
2 6
Quoting: Anonymous Coward 32084555

(1/2(6)3), 1|3 <-> 2|6
Quoting: Anonymous Coward 32084555

6
_ -> 1
6

1 1
- -> -
6 6

(1/6(6)1), 1|1 <-> 6|6
War Lord

User ID: 19364503
United States
01/13/2013 01:07 AM
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Re: Math: 6÷2(1+2) = ?
LOL! This thread is still alive... Can I get my old forum name back please? (Syrius)
1 Day... U will find what U R l00kin' for.
Anonymous Coward
User ID: 31088026
United States
01/13/2013 01:07 AM
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Re: Math: 6÷2(1+2) = ?
First time seeing this and I'm not a number fucker but these answer is clearly 9 why is there so many pages.... Bunch a fuckin dummies out there
Quoting: Anonymous Coward 27174350

Calling other people "fuckin dummies" when you can't perform a sixth grade math operation. Classic.
Anonymous Coward
User ID: 29226394
United States
01/13/2013 01:36 AM
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