48÷2(9+3)=?
- Thread starter dday4you
- Start date
If 48 was over 2(9+3), as in there was a horizontal line, it would be 2.
The way it's written here, it's 288.
The way it's written here, it's 288.
One thing to remember about PEMDAS is that the M and D are on the same hierarchy and take order based on left to right. Same with the A and S. The division occurs before the multiplication, so its 288.
There is no correct answer. The whole BEDMAS or Order of Operations thing is primarily based on custom and is taught differently in different parts of the world. The question uses that to be ambiguous, it is not a "real" mathematical question so much as hook to try and start semantical arguements based on pointless mathematical principles that nobody above the age of 12 should be bothering with.
TL
R It's a troll thread.
TL
R It's a troll thread.
Oddly, I learned the order of operations bit with this: Please excuse my dear Aunt Sally! (Parentheses, exponents, multiplication, division, addition, subtraction)
This exact thread has been done a couple of weeks ago. There should be no discussion. Everybody who blindly follows BEDMAS or something did not pay good attention in school (or had a horrible teacher). Multiplication and division have the same priority, which means that you do them from left to right.
It is horrible and misleading notation though. 48/2*(9+3) would have been clearer, but it's the same thing.
It is horrible and misleading notation though. 48/2*(9+3) would have been clearer, but it's the same thing.
We're not doing this again. Oh, and the correct answer is "both:"
Long story short, the expression as written is ambiguous, and no one is going to write it like that. Both answers are correct: it's 2 if you follow the consensus that multiplication by juxtaposition is stronger than regular multiplication, and 288 if you don't.
PurpleMath.com said:
Long story short, the expression as written is ambiguous, and no one is going to write it like that. Both answers are correct: it's 2 if you follow the consensus that multiplication by juxtaposition is stronger than regular multiplication, and 288 if you don't.
It's BEDMAS or BODMASxzenopredator said:This entirely.I dont get where all these supposed "difficult" maths equations are coming from.First 4chan,then facebook,now here.Do people not know the rules of mathsIznat said:
Brackets.Exponentiols.Multiplication.Devision.Addition.Subtraction. <-- for anyone who doesnt know BEMDAS
you got division and multiplication the wrong position
this really depends in programing language the order for division and multipication is left to right and hence answer becomes 288
in mathematics it is BEDMAS or BODMAS which is 288
I'm fine with people being stupid.kebab4you said:
But stupid people calling other people stupid, thinking they're smart? That's a scary sort of stupid.
Using the division sign in a one-line expression like that is just ambiguous. (48/2)(9+3) and 48/(2(9+3)) are both valid interpretations. There may be a standard, but I'm not aware of any. Well, if there is a standard, Google and WolframAlpha would probably know:
http://www.google.co.za/search?aq=f&sourceid=chrome&ie=UTF-8&q=48%2F2(9%2B3) says 288
http://www.wolframalpha.com/input/?i=48%2F2(9%2B3) says 288
http://www.google.co.za/search?aq=f&sourceid=chrome&ie=UTF-8&q=48%2F2(9%2B3) says 288
http://www.wolframalpha.com/input/?i=48%2F2(9%2B3) says 288
This. +1Spencer Petersen said:
The distributive law (the one that multiplies numbers inside the brackets by those outside) is the equivalent of regular multiplication. Therefore in this case we would perform the division then the multiplication from left to right (remember multiplication and division are at the same rung of the ladder people!).
Guys don't argue over this but instead read:
http://knowyourmeme.com/memes/48293
This is a troll thread or meme if you will.
To answer it more accurately both answers are correct but it depends on the system for the order of operations. If you use the standard most-accepted order of operations then your answer will be 288. Check the link it goes into detail.
Lastly (and most importantly) the division symbol is rarely used by ACTUAL mathematicians such as myself. We would use the 48 as a numerator and the rest of the expression as a denominator if we wanted the answer to be 2.
This been done. Like 2-3 months ago.
48 : 2 * (9 + 3) = 48 : 2 * 12 = 24 * 12 = 288
Any other way of doing it is wrong in terms of mathematical order. Division and multiplication are equal. Mnemonics fail because of it, they are just to help you to remember, not rules themselves.
48 : 2 * (9 + 3) = 48 : 2 * 12 = 24 * 12 = 288
Any other way of doing it is wrong in terms of mathematical order. Division and multiplication are equal. Mnemonics fail because of it, they are just to help you to remember, not rules themselves.
...It's 2 right?
2 gets multiplied into the numbers in the brackets, () is brackets right?
thou endest up with 48/(18+6)
Which in turn becometh 24
and thou are therefore left with 48/24
The math has set out a decree that proclaims 48/2(9+3)=2
...I'll stop now, I have no idea what got over me.
I still hold firm in my faith that the answer is 2.
-V
2 gets multiplied into the numbers in the brackets, () is brackets right?
thou endest up with 48/(18+6)
Which in turn becometh 24
and thou are therefore left with 48/24
The math has set out a decree that proclaims 48/2(9+3)=2
...I'll stop now, I have no idea what got over me.
I still hold firm in my faith that the answer is 2.
-V
No. Multiplication and division change priority from left to right. If division is left of multiplication, you divide first.Iznat said:No D: The priority is BEMDASWuggy said:
Brackets
Exponentials
Multiplication
Division
Addition
Subtraction
Ergo:
2(9+3)
2(12)
24
leading to
48/24
Goddamnit, you guys are wrong!