- Sep 23, 2008
- 1,005
- 24
your creating parentheses out of nowhere on your second step....
48÷2(9+3) = ???
- Thread in 'General' Thread starter Started by n1k3b4ller,
- Start date
your creating parentheses out of nowhere on your second step....
- Feb 28, 2006
- 1,461
- 65
Yes. That's what I attested to.
I just asked my brother, as a studying engineer, how he read and interpreted that question....
I didn't prime him or told him people were saying 288 or 2
He answered 2 and reasoned you apply the parenthesis first.
UPDATE:
my bro just read the manual for his casio, some calculators take precedence over others for order of operation, but calculator aside... and abacus, paper and pencil.
i guess they put the skill testing question on prizes for a reason.
- Feb 28, 2006
- 1,461
- 65
Yes. That's what I attested to.
I just asked my brother, as a studying engineer, how he read and interpreted that question....
I didn't prime him or told him people were saying 288 or 2
He answered 2 and reasoned you apply the parenthesis first.
UPDATE:
my bro just read the manual for his casio, some calculators take precedence over others for order of operation, but calculator aside... and abacus, paper and pencil.
i guess they put the skill testing question on prizes for a reason.
- Jul 25, 2009
- 583
- 10
There is no problem in the formatting, / and the division symbol are equals and fractions are just another intepretation of division that makes it easier to handle equations.. Check my proof above for why the answer isn't 2..
- Jun 16, 2010
- 2,255
- 12
doesnt matter what form of sign you use if it's all on one line
the folks claiming it's 2 are seeing:
48/[2(9+3)]
obviously a big difference
- Jun 16, 2010
- 2,255
- 12
doesnt matter what form of sign you use if it's all on one line
the folks claiming it's 2 are seeing:
48/[2(9+3)]
obviously a big difference
- Jul 25, 2009
- 583
- 10
There is no problem in the formatting, / and the division symbol are equals and fractions are just another intepretation of division that makes it easier to handle equations.. Check my proof above for why the answer isn't 2..
- Oct 14, 2008
- 1,871
- 11
He is just showing thatyou perform division before multiplication ...Multiplication and Division are on the same level. You don't do multiplication before division every single time...it is what comes first. Pemdas, pedmas, pemdsa, pedmsa....it is the same thing.
- Sep 23, 2008
- 1,005
- 24
P.E.M.D.A.S
Because Multiplying comes before Division.......
you follow the steps in order....
48/2(9+3) Parentheses
48/2*12 Multiplying
48/24 Division
=2
- Oct 14, 2008
- 1,871
- 11
He is just showing thatyou perform division before multiplication ...Multiplication and Division are on the same level. You don't do multiplication before division every single time...it is what comes first. Pemdas, pedmas, pemdsa, pedmsa....it is the same thing.
- Sep 23, 2008
- 1,005
- 24
P.E.M.D.A.S
Because Multiplying comes before Division.......
you follow the steps in order....
48/2(9+3) Parentheses
48/2*12 Multiplying
48/24 Division
=2
- Nov 10, 2007
- 9,134
- 1,012
this is how i answered the question the first time i read it in my head
but everything ive been taught tells me its 288
i say its ambiguous, but i also say that the people saying "it can only be 2" are trying to force an unproven rule on those saying its 288
- Jun 6, 2006
- 4,779
- 651
What is 48*0.5*12?
- Jun 6, 2006
- 4,779
- 651
What is 48*0.5*12?
- Nov 10, 2007
- 9,134
- 1,012
this is how i answered the question the first time i read it in my head
but everything ive been taught tells me its 288
i say its ambiguous, but i also say that the people saying "it can only be 2" are trying to force an unproven rule on those saying its 288
- Nov 8, 2010
- 381
- 14
Really what it comes down to is if you were taught to put multiplication over division in PEMDAS, or treat them as the same priority from left to right.
I was always under the assumption to put Multiplication OVER division because of the order of PEMDAS, which is why we get the answer "2". But if you put multiplication and division under the same priority, and read it from left to right, you will DIVIDE first and then Multiply which will give you the answer "288".
It all depends on your school of thought.
hence there will be debate and a 50+ page thread.
I was always under the assumption to put Multiplication OVER division because of the order of PEMDAS, which is why we get the answer "2". But if you put multiplication and division under the same priority, and read it from left to right, you will DIVIDE first and then Multiply which will give you the answer "288".
It all depends on your school of thought.
hence there will be debate and a 50+ page thread.
- Nov 8, 2010
- 381
- 14
Really what it comes down to is if you were taught to put multiplication over division in PEMDAS, or treat them as the same priority from left to right.
I was always under the assumption to put Multiplication OVER division because of the order of PEMDAS, which is why we get the answer "2". But if you put multiplication and division under the same priority, and read it from left to right, you will DIVIDE first and then Multiply which will give you the answer "288".
It all depends on your school of thought.
hence there will be debate and a 50+ page thread.
I was always under the assumption to put Multiplication OVER division because of the order of PEMDAS, which is why we get the answer "2". But if you put multiplication and division under the same priority, and read it from left to right, you will DIVIDE first and then Multiply which will give you the answer "288".
It all depends on your school of thought.
hence there will be debate and a 50+ page thread.
- Aug 18, 2010
- 4,363
- 10
This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank).
http://www.purplemath.com/modules/orderops.htm
http://www.algebrahelp.com/lessons/simplifying/oops/
http://www.onlinemathlear...perations-worksheet.html
- Aug 18, 2010
- 4,363
- 10
This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank).
http://www.purplemath.com/modules/orderops.htm
http://www.algebrahelp.com/lessons/simplifying/oops/
http://www.onlinemathlear...perations-worksheet.html
- Aug 18, 2010
- 4,363
- 10
NO ONE TEACHES MULTIPLCATION IS BEFORE DIVISION. YOU GUYS JUST DONT UNDERSTAND ORDER OF OPERATION. PEMDAS is ONLY a way to remember the orders of operations not a literal interpretation of how it is. NO CREDIBLE PERSON believes you MUST multiply before division you do what is FIRST.
- Aug 18, 2010
- 4,363
- 10
NO ONE TEACHES MULTIPLCATION IS BEFORE DIVISION. YOU GUYS JUST DONT UNDERSTAND ORDER OF OPERATION. PEMDAS is ONLY a way to remember the orders of operations not a literal interpretation of how it is. NO CREDIBLE PERSON believes you MUST multiply before division you do what is FIRST.
- Jan 27, 2008
- 6,149
- 325
this thread makes me feel stupid.
- Jan 27, 2008
- 6,149
- 325
this thread makes me feel stupid.
- Nov 5, 2007
- 19,391
- 899
This is more so a comprehension question than an actual math question
