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Maths question

Archive: 39 posts


OKay, let's see how many people get this right

1 + 1 + 1 + 1 + 1 x 0 =??
2012-09-29 21:04:00

Author:
bluesteel789
Posts: 159


Easy, but meh... The answer's zero.2012-09-29 21:31:00

Author:
TheMonkeyBlade
Posts: 687


49462345 .2012-09-29 21:37:00

Author:
Rabid-Coot
Posts: 6728


Well, according to Order of Operations, you'd activate 'PEMDAS'. No parentheses or exponents are visible, so we go for multiplication/division from left to right, before thinking about addition or subtraction. One times zero equals zero, and then you'd add the four ones before it. The answer is four.

Prize?
2012-09-29 21:52:00

Author:
Dragonvarsity
Posts: 5208


Well, according to Order of Operations, you'd activate 'PEMDAS'. No parentheses or exponents are visible, so we go for multiplication/division from left to right, before thinking about addition or subtraction. One times zero equals zero, and then you'd add the four ones before it. The answer is four.

Prize?

Have a cookie. That is correct.
2012-09-30 02:02:00

Author:
L1N3R1D3R
Posts: 13447


it's zero.
1+1+1+1+1=5
5x0=0
2012-09-30 03:23:00

Author:
Sunbunny23
Posts: 995


Yes, @Rabid-Coot you are correct! Good job!2012-09-30 17:55:00

Author:
bluesteel789
Posts: 159


Yes, @Rabid-Coot you are correct! Good job!

I'm not even going to give the mental effort to figure that answer out, so instead I'll ask,

why wasn't that an option?
2012-09-30 18:23:00

Author:
Dragonvarsity
Posts: 5208


I'm not even going to give the mental effort to figure that answer out

Random number generator.
2012-09-30 18:28:00

Author:
Rabid-Coot
Posts: 6728


it's zero.
1+1+1+1+1=5
5x0=0


Easy, but meh... The answer's zero.

You are the reason America's behind thirty or so countries in terms of education.
2012-09-30 18:31:00

Author:
SLS10
Posts: 1129


What's even sadder is that there were several people in my class who didn't know what mean, median and mode are.

This is a university class.



And yeah, whoever answered zero really needs to pay more attention in school. Order of operations is not hard.
2012-09-30 18:38:00

Author:
bonner123
Posts: 1487


I can't tell if the people who answered zero are trolling are not.... I hope so.2012-09-30 19:25:00

Author:
Patronus21
Posts: 266


Easy, but meh... The answer's zero.


http://www.youtube.com/watch?v=McAeQiLmEYU
2012-09-30 19:27:00

Author:
RockSauron
Posts: 10882


1+1+1+1+1x0 = 4
(1+1+1+1+1)x0 = 0
7033? almost equals 49462345

Get you math right, cupcakes! :kz:
2012-09-30 20:36:00

Author:
gdn001
Posts: 5891


1+1+1+1+1x0 = 4
(1+1+1+1+1)x0 = 0
7033? almost equals 49462345

Get you math right, cupcakes! :kz:

The true answer is 49463089 to 7033?. So, you were off by 744. Almost right, indeed. But almost doesn't cut it in today's world, maggot.

And, I did initially answer zero, but only because I rushed through it (after closer inspection, the answer is 4). But, when evaluating the equation, the factors "??" are not practical numbers in mathematics, so the entire equation is flawed. The question should be worded:

Find the answer to this equation: 1+1+1+1x0.
2012-10-01 03:25:00

Author:
Outlaw-Jack
Posts: 5757


What's even sadder is that there were several people in my class who didn't know what mean, median and mode are.

This is a university class.



And yeah, whoever answered zero really needs to pay more attention in school. Order of operations is not hard.

Ehmmm, who knows, maybe some members are still in primary school. We can't criticize them if we don't really know the math knowledge they've got.
2012-10-01 03:40:00

Author:
yugnar
Posts: 1478


Ehmmm, who knows, maybe some members are still in primary school. We can't criticize them if we don't really know the math knowledge they've got.

Pretty sure PEMDAS is learned fairly early in mathematics.
2012-10-01 05:08:00

Author:
Patronus21
Posts: 266


The true answer is 49463089 to 7033?. So, you were off by 744. Almost right, indeed. But almost doesn't cut it in today's world, maggot.

And, I did initially answer zero, but only because I rushed through it (after closer inspection, the answer is 4). But, when evaluating the equation, the factors "??" are not practical numbers in mathematics, so the entire equation is flawed. The question should be worded:

Find the answer to this equation: 1+1+1+1x0.

Perhaps the question mark on the other side is a variable. We work out the same problem, and get four, but because there are really two 'question marks , you divide it by two, resulting in two. Or maybe I should stop while I'm ahead.

Also, guys, I think Monkey and Sunbunny get it now. No need to continue the knowledge bashing
2012-10-01 10:16:00

Author:
Dragonvarsity
Posts: 5208


Well, according to Order of Operations, you'd activate 'PEMDAS'. No parentheses or exponents are visible, so we go for multiplication/division from left to right, before thinking about addition or subtraction. One times zero equals zero, and then you'd add the four ones before it. The answer is four.

Prize?

Is it not PEDMAS, not PEMDAS?

Reason being, in the UK we call it BODMAS, 'B' standing for 'Brackets and I believe 'O' stands for 'powers Of' for some reason. If it was PEMDAS, that would mean that you have the D and the M the opposite way around to us.

EDIT: Also, remember everyone, how easy it is to forget the basics when you get to an advanced stage. Get an A-Level in maths (for the record, I got an 'A&aposthen go back to doing simple long division! You'll be confused initially.
On that subject, on another forum, some guy (now this really is stupid) thought that the probability of getting a heads (for example) when flipping a coin changed for each flip. This was a guy with (apparently) an Engineering degree. What he was saying (in essence) is that because a coin got a heads on the turn before, it would be less inclined to get a heads in the next turn. :facepalm:
2012-10-01 10:44:00

Author:
Ali_Star
Posts: 4085


Is it not PEDMAS, not PEMDAS?

Reason being, in the UK we call it BODMAS, 'B' standing for 'Brackets and I believe 'O' stands for 'powers Of' for some reason. If it was PEMDAS, that would mean that you have the D and the M the opposite way around to us.

EDIT: Also, remember everyone, how easy it is to forget the basics when you get to an advanced stage. Get an A-Level in maths (for the record, I got an 'A&aposthen go back to doing simple long division! You'll be confused initially.
On that subject, on another forum, some guy (now this really is stupid) thought that the probability of getting a heads (for example) when flipping a coin changed for each flip. This was a guy with (apparently) an Engineering degree. What he was saying (in essence) is that because a coin got a heads on the turn before, it would be less inclined to get a heads in the next turn. :facepalm:

Division can be before multiplication, and vice versa. It depends which comes first though when looking from left to right. Once any are found if at all, we look left to right for addition/subtraction.

So really, it could be called PEMDAS, PEDMAS, PEDMSA, etc.

I guess PEMDAS just sounds catchier here in the Americas.
2012-10-01 11:00:00

Author:
Dragonvarsity
Posts: 5208


You are the reason America's behind thirty or so countries in terms of education.

What if we are not american? lol

btw: i find that offensive. we have feelings you know.
2012-10-01 11:35:00

Author:
Sunbunny23
Posts: 995


0 trololololololol. Nah, me not THAT stupid, it's 4 Easy Peesy2012-10-01 12:44:00

Author:
Frenzie
Posts: 308


Find the answer to this equation: 1+1+1+1x0.

"1+1+1+1x0" is an expression, not an equation. But if you were to use the term "equation", you could say:

Find the value of x in this equation: x = 1+1+1+1x0

But of course, we now have a problem, since "x" is used both as a variable and as a multiplication operation. There may be many way to rectify this.

One solution, perhaps, would be to used a different variable in the equation, such as :arg:. For example:

Find the value of :arg: in this equation: :arg: = 1+1+1+1x0

Another option would be to replace the "x" with an asterisk, or another non-alphanumeric symbol:

Find the value of x in this equation: x = 1+1+1+1*0

To be safe, it may be a good idea to implement both of these ideas, id est:

Find the value of :arg: in this equation: :arg: = 1+1+1+1*0

:arg: = 4
2012-10-01 16:57:00

Author:
ARD
Posts: 4291


:arg: = 4

In that case, = 2
2012-10-01 17:08:00

Author:
RockSauron
Posts: 10882


elitism: the thread2012-10-01 19:09:00

Author:
Radishlord
Posts: 706


You are the reason America's behind thirty or so countries in terms of education.

The thing I find funny is how I am effecting America's terms of education when I'm not American...

I'm not actually bad at math, I just wasn't really thinking when posting my answer. You really shouldn't say things about other people's education though.
2012-10-01 21:29:00

Author:
TheMonkeyBlade
Posts: 687


The true answer is 49463089 to 7033?. So, you were off by 744. Almost right, indeed. But almost doesn't cut it in today's world, maggot.
Further order of magnitude analysis required.


And, I did initially answer zero, but only because I rushed through it (after closer inspection, the answer is 4). But, when evaluating the equation, the factors "??" are not practical numbers in mathematics, so the entire equation is flawed. The question should be worded...
Also should be noted that answering 1+1+1+1+1x0 = 4!! is wrong. This sentence does not equal over 6,2x10?? in any way.
2012-10-02 00:47:00

Author:
gdn001
Posts: 5891


Well. This is all very confusing now...
The worst thing is people say 'I typed it into a calculator and it said zero so it must be the truth!'
And in my school, we call it BIDMAS. BracketsIndicesDiv......
2012-10-02 19:13:00

Author:
bluesteel789
Posts: 159


Please Excuse My Dear Aunt Sally!


The worst thing is people say 'I typed it into a calculator and it said zero so it must be the truth!'

Well it depends on what calculator you use. Interestingly enough the Microsoft calculator will give an answer of either 0 or 4 depending on whether it's set to standard or scientific.

Frankly it's bad form to not include parens. I remember taking a Smalltalk class in college, Smalltalk is strictly left to right...assuming normal operator precedence will be honored can get you trouble.
2012-10-02 19:34:00

Author:
fullofwin
Posts: 1214


Well, according to Order of Operations, you'd activate 'PEMDAS'. No parentheses or exponents are visible, so we go for multiplication/division from left to right, before thinking about addition or subtraction. One times zero equals zero, and then you'd add the four ones before it. The answer is four.

Prize?

Your prize: More math questions and a bunch of sarcastic comments. Also, over here in NZ, we call it BEDMAS. Brackets, Exponents, Division, Multiplication, Addition, and Subtraction. Quite simple, really.


What's even sadder is that there were several people in my class who didn't know what mean, median and mode are.

This is a university class.

I find it difficult to believe this. :kz:
2012-10-04 02:26:00

Author:
Kaboosh99
Posts: 359


Well, according to Order of Operations, you'd activate 'PEMDAS'. No parentheses or exponents are visible, so we go for multiplication/division from left to right, before thinking about addition or subtraction.Also, over here in NZ, we call it BEDMAS. Brackets, Exponents, Division, Multiplication, Addition, and Subtraction. Quite simple, really.
Division and multiplication order doesn't matter much, because dividing something by N is the same as multiplying it by N^-1, or 1/N. Because order of multiplying doesn't matter, neither does division, as long as you pay attention to the sequence (3:2 equals 3*1/2, but not 1/3*2) and don't mix adding or subtraction (doesn't work with 3*4 + 5:2, for example.)
2012-10-04 17:41:00

Author:
gdn001
Posts: 5891


You are the reason America's behind thirty or so countries in terms of education.
I didn't know my multiplication tables or anything until I was around 22. My maths teachers were so bad they destroyed any interest I might have otherwise cultivated in the subject. It was only long after school that I found out I loved it.

For those struggling with order of operations in this case the problem can be rendered as 1+1+1+1+(1x0) which may make it more clear.

If you have to unravel a function like h(t)=t, g(t)=-6t^2-6t-5-3(h(t)), h(g(-6))=? it's useful to have a firm grasp of order of operations as you can easily get mixed up otherwise. At least I do.
If you're curious I believe the answer is h(265)= -167
2012-10-04 19:51:00

Author:
Ayneh
Posts: 2454


Division and multiplication order doesn't matter much, because dividing something by N is the same as multiplying it by N^-1, or 1/N. Because order of multiplying doesn't matter, neither does division, as long as you pay attention to the sequence (3:2 equals 3*1/2, but not 1/3*2) and don't mix adding or subtraction (doesn't work with 3*4 + 5:2, for example.)

I'm well aware of that, but you know. BEDMAS sounds so much better than BEMDAS.
2012-10-05 04:34:00

Author:
Kaboosh99
Posts: 359


GEMA people.
Grouping, Exponents, Multiplication and Division, Addition and Subtraction.
When you have both multiplication and division or addition and subtraction in the same problem, then do them from left to right.
This is pretty much my favorite, although I must give a shout out to IDNICCHTCESFAPPPC, standing for Integrals, Differentials, Negative Exponents, Imaginary Exponents, Cosines, Cosecants, Hyperbolic functions, Tensors, Chaos theory, E9, Super calculus,Floating point arithmetic, Are you still reading this, Pi times e, Pi times i, Pi times Pie, comphermc's long lost evil twin plotting to take over the world with Rubik's Tube 2, and then finally addition.
2012-10-06 01:59:00

Author:
Kalawishis
Posts: 928


GEMA people.
Grouping, Exponents, Multiplication and Division, Addition and Subtraction.
When you have both multiplication and division or addition and subtraction in the same problem, then do them from left to right.
This is pretty much my favorite, although I must give a shout out to IDNICCHTCESFAPPPC, standing for Integrals, Differentials, Negative Exponents, Imaginary Exponents, Cosines, Cosecants, Hyperbolic functions, Tensors, Chaos theory, E9, Super calculus,Floating point arithmetic, Are you still reading this, Pi times e, Pi times i, Pi times Pie, comphermc's long lost evil twin plotting to take over the world with Rubik's Tube 2, and then finally addition.
Or just have the sequence hardcoded into your brain.
2012-10-06 22:20:00

Author:
gdn001
Posts: 5891


Pretty sure PEMDAS is learned fairly early in mathematics.

My, my, but that does really depend of the countries' education program. I'm fairly sure that in my country I didn't heard a thing about PEMDAS until I reached secondary school (yeah... I blame the stupid education program in Mexico)... And probably there are much more countries that have some similarities like this one in their programs as well.

Self confession: I had never heard the operations order been called PEMDAS, so I had to Google search it. Yeah, I know tons of English expressions, but my Math teacher is not so... bilingual
2012-10-08 02:17:00

Author:
yugnar
Posts: 1478


Who answered 5?!2012-10-08 03:07:00

Author:
gamerguy5432
Posts: 333


My, my, but that does really depend of the countries' education program. I'm fairly sure that in my country I didn't heard a thing about PEMDAS until I reached secondary school (yeah... I blame the stupid education program in Mexico)... And probably there are much more countries that have some similarities like this one in their programs as well.

Fair enough. I made the false assumption that the time frame for one learning the Order of Operations (to put it more generically) was comparable to the U.S.

That said, when I see 9 out of 24 people give the incorrect answer to this, even accounting for 3 or 4 trolls, it confuses me greatly.
2012-10-10 01:14:00

Author:
Patronus21
Posts: 266


I don't know how it's called in Spain (something along the lines of Operating Order), but I learned it at primary school.

The order was brackets, multiplications and divisions, and the rest, right?

Then it's 4 (1+1+1+1+1x0; 1x0 is 0; 1+1+1+1+0 = 4)
2012-10-10 17:20:00

Author:
Patofan
Posts: 1185


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