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[Closed] 2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2 x 0?

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Posted : 11/10/2011 7:20 pm
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this thread is as bad as that 'constantinople' scenerio... (have i spelt it correctly :mrgreen: 😉


 
Posted : 11/10/2011 7:20 pm
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2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2x0

With parentheses to clarify the operations:

(2+2+2+2+2+2+2+2+2+2+2+2+2+2)-(2+(2x0))
Precedence of operations: (multiply, additions, subtraction)

Processing:

(2+2+2+2+2+2+2+2+2+2+2+2+2+2)-(2+(0))
(2+2+2+2+2+2+2+2+2+2+2+2+2+2)-(2)
(28)-(2)
26

No?


 
Posted : 11/10/2011 7:20 pm
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Anything time zero is O

How many red beans do you have Baldrick?
2.

How many blue beans?
3

How many green beans?
None.

So how many in total?
2 x red + 3 x blue + 0 x green = ?

😉


 
Posted : 11/10/2011 7:20 pm
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Best thread ever! At least since I have been on here.
I might not be able to string much of a sentence together but I know me sums. This thread has reminded me that I am not so slow after all.


 
Posted : 11/10/2011 7:23 pm
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With parentheses to clarify the operations:

You're overcomplicating.

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+(2x0)

Addition and subtraction have equal value, despite what that BOBBINS thing will have you believe.


 
Posted : 11/10/2011 7:23 pm
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Well, there's no = sign in any of the 'equations' so they don't sum to anything.

But BODMAS is Brackets Of..... There aren't any brackets so you just execute left to right.


 
Posted : 11/10/2011 7:24 pm
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But BODMAS is Brackets Of..... There aren't any brackets so you just execute left to right.

Brackets, Other, Division, Multiplication, Addition, Subtraction. Apparently. So, no.


 
Posted : 11/10/2011 7:28 pm
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It's 13.

It was so boring I forgot to take the 4 away from 2+(3x5) 😳

Non-scientific calculators will evaluate the sum as entered and get zero. Any scientific calculator will do it sensibly and give 26.

Just done it on my Casio Scientific Calculator...

Oh look, that sez 0 as well! 😀


 
Posted : 11/10/2011 7:29 pm
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And, really, whoTF came up with 'other'? I'm with the Septics here, it should be Exponents.


 
Posted : 11/10/2011 7:29 pm
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Just done it on my Casio Scientific Calculator...

Did you press 'equals' after each step? Don't do that. Just type it in. Have you read the instructions?


 
Posted : 11/10/2011 7:31 pm
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It's not Other it is Order.

If you say Parenthesis and Exponent then PEMDAS is the mnemonic for you.

If you're old skool and say Brackets and Order then BODMAS.

Some even say BIDMAS, with I for Indices. But those people are wrong.


 
Posted : 11/10/2011 7:33 pm
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Allthough inertestingly, my Calculator app on my Mac, in'Scientific' mode, gives 26. 😯

It does it in 'Normal' mode too.

How confuddling!

Casio v Apple.

Hmm.......


 
Posted : 11/10/2011 7:34 pm
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Just done it on my Casio Scientific Calculator...

I've just done it on my Casio FX451 (last used when I was at school) and it gave the correct answer. I'd respectfully suggest that one of three things is happening here:

1) You're unable to use a calculator
2) Your calculator is rubbish
3) You're deliberately getting the wrong answer, or saying you are, to prove a point.

If I were a betting man, I'd go with 3).


 
Posted : 11/10/2011 7:34 pm
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TB perfectly H; I don't actually care.

All this proves is that there's more than one way to skin a cat.

If you want to think yourself cleverer than me, be my guest.

You're still a boring maths geek.

And you probbly smell too.


 
Posted : 11/10/2011 7:37 pm
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It's not Other it is Order.

Fair enough, must've misread. I hadn't heard of it up until this thread.


 
Posted : 11/10/2011 7:38 pm
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C'mon Fred, you're just bumping the thread to get a wunundred 😉


 
Posted : 11/10/2011 7:39 pm
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Brackets, Other, Division, Multiplication, Addition, Subtraction. Apparently. So, no.

Meh. I feel my childhood maths lessons with Mr English (ironic I know) are now wasted.

But I stick by my point that there's no equals sign so no requirement to solve.

It doesn't really matter. The equation is intentionally ambiguous so that the nerds of the world have something to discuss other than star trek.


 
Posted : 11/10/2011 7:39 pm
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You're still a boring maths geek.

Yes but you're still wrong! 😉


 
Posted : 11/10/2011 7:41 pm
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Being good at maths is just an evolutionary dead end, and is slowly being bred out of humans by natural selection. It confers no advantage over being a celebrity.

So we shouldn't be surprised that so few people understand this question and get the right answer.

Elfin - if you got the wrong answer, it's because you're sexier.

In fifty years time, no-one will get the right answer.


 
Posted : 11/10/2011 7:43 pm
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Are you suggesting that I've obtained it through deception? 😯

That's slanderous or libellous or defamatory or something. 😐

See you in court.

Yes but you're still wrong!

How can that actually be possible? 😕

Don't be so silly. Go and have a think about what's you've just said, and ponder the folly of your actions.

I'm going to ponder what to have for supper. Prawns and mussels with seaweed stir-fry? Or chicken and mushrooms in herbed garlic butter?


 
Posted : 11/10/2011 7:44 pm
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THE RUDDY PLANE TAKES OFF


 
Posted : 11/10/2011 7:47 pm
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Allthough inertestingly, my Calculator app on my Mac, in'Scientific' mode, gives 26.

It does it in 'Normal' mode too.


Well there goes the post I was composing about arty types' Macs giving the wrong answer (the calculator on W7 also gives the correct answer).

The calculator on my cheap as chips mobile phone also gives the correct answer.


 
Posted : 11/10/2011 7:47 pm
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Elfinsafety - Member
I'm going to ponder what to have for supper. [s]Prawns and mussels with seaweed stir-fry?[/s]Donor Or [s]chicken and mushrooms in herbed garlic butter?[/s]Shish


 
Posted : 11/10/2011 7:49 pm
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"Addition and subtraction have equal value, despite what that BOBBINS thing will have you believe"

OK. I never thought about it.

Is division also equal precedence to multiplication?

I expect to see some proof? 😉


 
Posted : 11/10/2011 7:50 pm
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I expect to see some proof?

http://en.wikipedia.org/wiki/Order_of_operations


 
Posted : 11/10/2011 7:52 pm
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In fifty years time, no-one will get the right answer.

I bet Steve Jobs would have got the right answer. I bet a lot of people who worship him wouldn't.


 
Posted : 11/10/2011 7:52 pm
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The whole point of the BODMAS thing is to avoid debates like this....


 
Posted : 11/10/2011 7:56 pm
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I got an A in Further Maths at A-level, never heard of BODMAS!


 
Posted : 11/10/2011 7:56 pm
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No had kebab t'other night. Can't have kebab every night. Nice to have a bit of variety.


 
Posted : 11/10/2011 8:00 pm
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B at A level Applied maths here (probably equal to A+ in todays money 😉 ) and BOMAS rings a bell but not loudly. I thinks it's basic maths that soon gets superceded by the complex stuff.
Do avoid confusion and mistakes few scentists would would do a proper equation without parentheses as it


 
Posted : 11/10/2011 8:05 pm
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I got an A in Further Maths at A-level, never heard of BODMAS!
😯
I know the exams are getting easier nowadays but FFS we did that at primary school! And I only got a B for normal maths at A-level.


 
Posted : 11/10/2011 8:06 pm
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13 years ago rather than 'nowadays'

Nowadays I can't do any maths at all, brain has atrophied 🙂


 
Posted : 11/10/2011 8:13 pm
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Do avoid confusion and mistakes few scentists would would do a proper equation without parentheses as it

That sentence appears to need some parentheses (or maybe punctuation or re-ordering of words).


 
Posted : 11/10/2011 8:18 pm
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The answer is 0. Any number x zero = zero.

And, actually, maths IS important, not only because it's great fun (because it makes your brain tickle) but also because it is the reason why.


 
Posted : 11/10/2011 8:35 pm
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3 pages in and no one has said the answer is 42
It's always 42
This place is slipping!


 
Posted : 11/10/2011 8:35 pm
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Any number x zero = zero.

It is, but when you then add things to it, it stops being.


 
Posted : 11/10/2011 8:41 pm
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3 pages in and no one has said the answer is 42

In that case, what was the question?


 
Posted : 11/10/2011 8:42 pm
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It was called BIDMAS when I was doing my GCSEs. I thought the answer was 0 but apparently not. Oh well. It's not like I'd need to know this in the real world.


 
Posted : 11/10/2011 8:45 pm
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The answer is 0. Any number x zero = zero.

And, actually, maths IS important, not only because it's great fun (because it makes your brain tickle) but also because it is the reason why.

LOL. Yes maths [i]is[/i] fun.
And here's the Maths Is Fun website to explain why you are wrong:

http://www.mathsisfun.com/operation-order-bodmas.html

😀


 
Posted : 11/10/2011 8:46 pm
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Imagine you were doing algebra.

What's a + b + c + de, where a = 1, b = 2, c = 3, d = 4 and e = 5?

No arguments there - but that expression is exactly the same as a + b + c + d x e


 
Posted : 11/10/2011 8:50 pm
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But if 2x0=0
through a little rearranging this would mean 0/0=2

6x0=0
through a little rearranging this would mean 0/0=6

Therefore does 6=2? Or a million variations there-of?

Just wondering? 😉


 
Posted : 11/10/2011 8:53 pm
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The answer is 0. Any number x zero = zero.

And the one number which is multiplies by zero becomes zero. It's then added to 2 and then subtracted from all those other twos. Giving 26.


 
Posted : 11/10/2011 8:54 pm
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But if 2x0=0
through a little rearranging this would mean 0/0=2

[img] [/img]


 
Posted : 11/10/2011 8:57 pm
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That's right, I went there! 😆


 
Posted : 11/10/2011 8:58 pm
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I think it's a bit naughty the way the question is written

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2 x 0

I think people may interpret

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2x0 differently although I know the theory as to why this shouldn't make a difference, but the extra spaces before the x 0 are almost implied brackets.


 
Posted : 11/10/2011 9:00 pm
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I don't usually jump up and down shouting "I'm right I'm righ I'm right" even though I usually am but in this case it is 26.
In maths, it is right or wrong, there are no grey areas. It is 26 and anyone who says it isn't is wrong, or just trying to be awkward for the sake of it.
.
If you want a proper discussion with answers open to interpretaion go and discuss whether or not an aircraft could take off from a treadmill or whether all headsets do indeed come complete with crown races.
.
Rant over. (possibly poor rant due to lack of capitals and swear words)


 
Posted : 11/10/2011 9:04 pm
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FWIW Elfin is probably right about his calculator, older ones (15 years+) will do operations in the order entered and rely on the user to know how to key data correctly. Simple test; do you enter sin 45 or 45 sin? if it's the latter then th calculator won't be sorting out the order for you!

My one in the office is like this, it doesn't mean the answer's 0 though...

Engineer BTW


 
Posted : 11/10/2011 9:07 pm
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Ah, I was wrong, thank you for teaching me.

So, it's

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+0

26?


 
Posted : 11/10/2011 9:11 pm
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Yep

[img] [/img]


 
Posted : 11/10/2011 9:14 pm
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what ebygomm said and what waswas said on page2.

question writing fail. 😆


 
Posted : 11/10/2011 9:14 pm
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I know it's not zero because I went to school.

+ 1 + 1 x 0


 
Posted : 11/10/2011 9:24 pm
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I would say that I quickly learned that writing expressions that relied on remembering the precedence of this lot (see below) is doomed, and made a pact with Athena (Goddess of computer programmers) to use parentheses.

1 () [] -> . :: Grouping, scope, array/member access
2 ! ~ - + * & sizeof type cast ++x --x (most) unary operations, sizeof and type casts
3 * / % Multiplication, division, modulo
4 + - Addition and subtraction
5 << >> Bitwise shift left and right
6 < <= > >= Comparisons: less-than, ...
7 == != Comparisons: equal and not equal
8 & Bitwise AND
9 ^ Bitwise exclusive OR
10 | Bitwise inclusive (normal) OR
11 && Logical AND
12 || Logical OR
13 ?: Conditional expression (ternary operator)
14 = += -= *= /= %= &= |= ^= <<= >>= Assignment operators
15 , Comma operator (a particularly mental idea)


 
Posted : 11/10/2011 9:24 pm
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So does it take off or not? I'm confused.


 
Posted : 11/10/2011 9:26 pm
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jools... always open the other door... that's all you need to know!


 
Posted : 11/10/2011 9:27 pm
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In maths, it is right or wrong, there are no grey areas. It is 26 and anyone who says it isn't is wrong, or just trying to be awkward for the sake of it.

Bless. You're really quite worked up by all this, aren't you?

You are of course wrong, but I respect your right to be. 🙂

Either write the sum down correctly to get your 26, or shut up and accept that it's 0.

END OF THREAD.


 
Posted : 11/10/2011 9:28 pm
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Just seen this thread.

[img] [/img]

I don't think I'm prepared to read any of it though, but going on the fact it's got to 4 pages, I'm assuming there is at least one person who knows nothing about maths and is refusing to believe they might be wrong, even when they are. And I find this slightly depressing.

Anyway, carry on.


 
Posted : 11/10/2011 9:29 pm
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I quickly learned that writing expressions that relied on remembering the precedence of this lot (see below) is doomed

Ah, good ol GSAUSTMDMASbSCbAbXbOlAlOCAC.

'm assuming there is at least one person who knows nothing about maths and is refusing to believe they might be wrong, even when they are.

Yep, I think he posted just before you 😀


 
Posted : 11/10/2011 9:30 pm
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Hold on Graham... was that the answer in base 26?


 
Posted : 11/10/2011 9:32 pm
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[b]Either write the sum down correctly to get your 26, or shut up and accept that it's 0.[/b]


 
Posted : 11/10/2011 9:33 pm
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Ooh there he is again.


 
Posted : 11/10/2011 9:35 pm
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Elfin.. just believe your Mac.. after all, it can do no wrong.. ;o)


 
Posted : 11/10/2011 9:35 pm
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Some old calcs did BOMDAS rather than BODMAS, but otherwise it always has been and always will be 26, regardless of spaces which are [url= http://en.wikipedia.org/wiki/Whitespace_character ]whitespace[/url] in maths.

There's no harm in being wrong, so long as you learn from it.


 
Posted : 11/10/2011 9:35 pm
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Hold on Graham... was that the answer in base 26?

Dinnae be daft, in base 26 the answer is 10


 
Posted : 11/10/2011 9:36 pm
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It's "you're wrong", as in "you are wrong". Just pointing it out while we're bashing people for lacking a grasp of GCSE level concepts.


 
Posted : 11/10/2011 9:38 pm
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If you follow the sum step by step by step, you end up at the end with 28x0 at the end.

What is 28x0?

[b]Either write the sum down correctly to get your 26, or shut up and accept that it's 0.[/b]

Don't just make up imaginary non-existent brackets to try to prove your wrongness.


 
Posted : 11/10/2011 9:38 pm
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[img] [/img]

Why? Why can't I resist?

Under the rules of bidmas/bodmas, which is an internationally, universally, accepted system of the rules of how mathematical symbols should be understood, this

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2 x 0

is the same as

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+(2x0)

and we can cancel out a little bit as there's a minus, and as (2x0)=0 we can cancel that too..

2+2+2+2+2+2+2+2+2+2+2+2+2=26

anything else is illogical and wrong, and arguing otherwise would make you either incredibly ignorant and/or a troll.

From Matlab 7.12.0 R2011a

>> 2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2*0

ans =

26

From wolfram alpha

http://www.wolframalpha.com/input/?i=2%2B2%2B2%2B2%2B2%2B2%2B2%2B2%2B2%2B2%2B2%2B2%2B2%2B2-2%2B2+x+0

Put it in a calculator if you're still doubtful.


 
Posted : 11/10/2011 9:38 pm
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The MD/DM and AS/SA bits are a bit of a funny in this anyway...

For multiplication and division, they are actually of equal precedence (essentially being the same operation), as are subtraction and addition (snap), and so those are evaluated from left to right.


 
Posted : 11/10/2011 9:38 pm
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Everyone who said 26 should wear these so as to distingish themselves from less able people...

[img] [/img]

Sometimes being right, just isn't right.


 
Posted : 11/10/2011 9:39 pm
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arguing otherwise would make you either incredibly ignorant and/or a troll.

or both


 
Posted : 11/10/2011 9:40 pm
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If you [s]follow the sum step by step by step[/s][i]ignore the fundamental rules of operator order[/i], you end up at the end with 28x0 at the end. [i]Which is wrong[/i]

FTFY


 
Posted : 11/10/2011 9:41 pm
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2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2 x 0

is the same as

2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+(2x0)

It's not. It's a different sum. Think about it.

[b]Either write the sum down correctly to get your 26, or shut up and accept that it's 0.[/b]

So, you're arguing then, if you follow the sum [b]as written[/b], and do each stage [b]according to the order it's written down[/b], that the answer is anything other than zero?

See, when you put the brackets in, it makes sense. Without them, it's only logical to do it stage by stage in the order it is written.

Don't give it with all the 'ooh I'm clever with maths' rubbish, cos that's cobblers. Read it. Readi it again. Do the sum in the order it's written, without any imaginary brackets.

It's 0, isn't it? 😉

anything else is illogical and wrong, and arguing otherwise would make you either incredibly ignorant and/or a troll.

I just put it down to you being young, arrogant and a nerd. 😉


 
Posted : 11/10/2011 9:45 pm
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'Fundamental rules' my arse.

ps. can I just point out (again) that this has nothing to do with mathematics, but convention while doing sums.


 
Posted : 11/10/2011 9:46 pm
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The MD/DM and AS/SA bits are a bit of a funny in this anyway...

For multiplication and division, they are actually of equal precedence (essentially being the same operation), as are subtraction and addition (snap), and so those are evaluated from left to right.

Yep, the various sites I linked to make that clear. It's just a handy mnemonic to help kids.

They tend to say PEMDAS because they use the mnemonic Please Excuse My Dear Aunt Sally

I guess likewise BODMAS is more memorable than BOMDSA but both are correct.


 
Posted : 11/10/2011 9:47 pm
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If you follow the sum step by step by step, you end up at the end with 28x0 at the end.

But that's not how maths is done (correctly). But never mind, you refuse to learn.

The problem with BODMAS/BOMDAS is that while the operations are essentially equal priority, when thrown into calculators without thought they yield different answers.


 
Posted : 11/10/2011 9:47 pm
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Elfin... does this mean that your Mac is *gasp* wrong?


 
Posted : 11/10/2011 9:47 pm
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[img] http://www.terrariaonline.com/attachments/cant-tell-if-stupid-or-trolling-jpg.6665/ [/img]

Actually, IDC. I'm out.


 
Posted : 11/10/2011 9:47 pm
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'Fundamental rules' my arse.

Are the bits of maths that are generally taught at primary school or GCSE level not fundamental?


 
Posted : 11/10/2011 9:48 pm
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But that's not how maths is done (correctly)

Yes it is.

Or should I say....

Yes (it is).


 
Posted : 11/10/2011 9:51 pm
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glenh... well, as it's only convention, then it doesn't make any difference then, just as I think I'll start using j instead of i for all my complex numbers...

Oh, hold on.. ;o)


 
Posted : 11/10/2011 9:53 pm
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