Poll: 6÷2(1+2)

[andy_mk3]

I answered before scrolling down and got 9.

BIDMAS is what I learnt at school.

BIDMAS stands for Brackets, Indices, Division and Multiplication, Addition and Subtraction

 

[Kreeeee]

Also I'm surprised this hasn't been posted yet:

http://www.wolframalpha.com/input/?i=6÷2(1+2)

Put "Sega" into that

 

[Van Hellseek]

I bought a half sandwich from Tesco, and it was half of 2 square slices of bread with filling. Therefore that picture is of one sandwich. FACT.

Tesco sell half-sandwiches?

notsureifserious.jpg

 

[Mason-]

I also agree, making the 2 right next to the brackets rather than a multiplication sign makes you want to multiply the brackets out first.

The answer to this really is, it doesn't matter, I don't care and I don't give a ****.

If anyone handed me this, I would ask them to gtfo and write fractions.

Oh and my caluclator:

Casio fx-9860G SD

agrees with me that it's 1.

 

[Redmint]

your calc is not scientific. the answer is 9, clearly.

It is scientific, I think it's the one I was told to get for my A levels actually are you suggesting I should send back my calculator as it doesn't know how to do basic maths?

(for the sake of clarity, just found my other calculator so no longer using the phone app)

 

[Barks]

Like stated above people are confusing the calculation as a fraction in which case 1 would be correct. The lack of brackets around (2(1+2)) to create a single expression means the answer is 9.

2(1+2) implies (2(1)+2(2)) as one term.

Otherwise it would be written as 2 * (1+2).

I just don't see how (2(1+2)) is necessary and I don't think I've ever seen it written in that form.

 

[Zhokel]

What do different programming languages do?

Well, in C++ and C# at least, you have to write,
6 / 2 * (1 + 2);

otherwise errors occur as you can't imply a * is there. So they both output 9.

 

[Hunders]

9

 

[jackthezipper]

It's 1. There is no multiplication.

If there was multiplication it would be 6 / 2 * (1+2)

As there is no multiplication sign the 2(1+2) is all included as the brackets in BOMDAS.
Therefore, 6 / 6

 

[danzhang16]

People need to stop answering these damn questions are start working on Fermat's last theorem!

Andrew Wiles.

 

[aspirins]

Tesco sell half-sandwiches?

notsureifserious.jpg

So do Pret

 

[Gangster]

It is scientific, I think it's the one I was told to get for my A levels actually are you suggesting I should send back my calculator as it doesn't know how to do basic maths?

Yes or you're doing it wrong.

6/2(1+2) yields 9.

Or,
(1+2) = 3
then 6/2 = 3

then 3(3) = 9

edit:

It's 1. There is no multiplication.

If there was multiplication it would be 6 / 2 * (1+2)

As there is no multiplication sign the 2(1+2) is all included as the brackets in BOMDAS.
Therefore, 6 / 6

Did you do maths at school or what?

There doesn't need to be a multiplication sign for it to mean multiply - everyone should know this.

 

[Van Hellseek]

So do Pret

But I don't see the packaging mention wether it's a half sandwich or 'a sandwich'.

 

[Barks]

Yes or you're doing it wrong.

6/2(1+2) yields 9.

Or,
(1+2) = 3
then 6/2 = 3

then 3(3) = 9

You are imagining there is a:

*
symbol in between 2 and (1+2)



It's definitely 1.

 

[Redmint]

Yes or you're doing it wrong.

I can take a picture of my calculator screen if it makes you happy... but I can assure you that I'm not failing at inputting 6÷2(2+1)

 

[Spleenus]

It is 9, because it doesn't matter how defined it is because you do it left to right - which comes out as 9.

It does matter how clearly defined it is as calculators will not calculate correctly as they're either following BODMAS or BOMDAS and cannot equate them equally. The question is flawed and doesn't have a real world use and is more theoretical in nature.

 

[Scon]

You are imagining there is a:

*

symbol in between 2 and (1+2)



It's definitely 1.

WRONG, AGAIN. It's a BASIC rule of maths, get taught it in secondary school.

 

[aspirins]

But I don't see the packaging mention wether it's a half sandwich or 'a sandwich'.

Doesn't even say its a sandwich actually!

 

[muon]

You are imagining there is a:

*
symbol in between 2 and (1+2)



It's definitely 1.

2(1+2)

is meaningless without a * there.

In fact as mentioned, excel, c# and c++ won't let you leave it at just that.

 

[Nitefly]

lol

gangster, I have already posted this in the thread.

Some people's calculators seem to be answering it differently.