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khanacademy.org is the same site I use with my daughter. Great resource!
2And damn you if i'm wrong.
PROVE it
The answer is 2. BC...... The parenthesis implies that you must add those two numbers together first. The 2 before parenthesis implies multiplication. So it's 2 x 12. Which equals 24.
48 divided by 24 = 2.
Man this thread has brought out all the lurkers!!
I still hate admitting I was wrong.
48/2(9+3)
48/2(12)
48/24 = 2
Must be some kinda trick if this thread is 12 pages.
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Fam. your mistake is that once you deal with the parentheses, you then go left to right:
48÷2(9+3)=
48÷2(12)=
24(12)= 288
I tripled checked
and I stand corrected.
It's a visual trick.
Order of operation says inside ( ) not outside.
then you have to go left to right and not resolve what's outside the parentheses
because everything is the same order of priority.
We have a tendency to set priority because the 2() seems grouped when it's not.
the it doe read.
48÷2 x (9+3)
It's right to left after what is inside the parentheses are solve.
so it's 288
http://www.mathgoodies.com/lessons/vol7/order_operations.html
BASTARDS
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Lol it's all good. As long as you understand why. That's what we care about.Yeah I was talking mad shit in the first few pages, but now I do get that the answer is 288...
So I OCKed myself too...![]()
It's a visual trick meant to demean humanity
bastards.
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Bullshit you have to multiply before division. You telling me I have to distribute the 16 to 9+3? Lies!
Sent from my HTC HD2 using Tapatalk
A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". 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). When you have a bunch of operations of the same rank, you just operate from left to right. For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left to right, you get to the division first. If you're not sure of this, test it in your calculator, which has been programmed with the Order of Operations hierarchy. For instance, typesetting this into a graphing calculator, you will get:
calculator screen-shot: 15 / 3 * 4 = 20
Using the above hierarchy, we see that, in the "4 + 2×3" question at the beginning of this article, Choice 2 was the correct answer, because we have to do the multiplication before the addition.
(Note: Speakers of British English often instead use "BODMAS", which stands for "Brackets, Orders, Division and Multiplication, and Addition and Subtraction". Since "brackets" are the same as parentheses and "orders" are the same as exponents, the two acronyms mean the same thing.)
http://www.purplemath.com/modules/orderops.htm
Mnemonics are often used to help students remember the rules, but the rules taught by the use of acronyms can be misleading. In Canada the acronym BEDMAS is common. It stands for Brackets, Exponents, Division, Multiplication, Addition, Subtraction. In other English speaking countries, Brackets may be called Parentheses, or symbols of inclusion and Exponentiation may be called either Indices, Powers or Orders, and since multiplication and division are of equal precedence, M and D are often interchanged, leading to such acronyms as BIMDAS, BODMAS, BOMDAS, BERDMAS, PERDMAS, PEMDAS, and BPODMAS.
These mnemonics may be misleading, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer.
10 - 3 + 2 ,
The correct answer is 9, which is best understood by thinking of the problem as the sum of positive ten, negative three, and positive two.
http://en.wikipedia.org/wiki/Order_of_operations
Position within the expression is used to determine the order of evaluation when two or more operators share the same operator precedence. Consider the following:
A = 6 / 2 * 3
In this case, A equals 9, since the division operator is to the left of the multiplication operator. The subexpression 6 / 2 is evaluated before the multiplication is done, even though the multiplication and division operators have the same precedence. Again, parentheses can be used to override the default evaluation order:
A = 6 / (2 * 3)
In this case, A equals 1, because the expression inside parentheses is evaluated first.
A useful rule of thumb is, "when in doubt, parenthesize". Some examples of expressions are provided in the following table.
http://idlastro.gsfc.nasa.gov/idl_html_help/Operator_Precedence.html
Lol it's all good. As long as you understand why. That's what we care about.
But lol @ people maintaining it's 2.
48/2 = 24*12 = 288.
Where did you get the (=) sign in this 48/2*12 ???
You completely redistributed the problem into an equation without any math.
this shit gonna be the new Kobe vs. Jordan...the new Android vs Apple......shit is serious ...cats breaking out the white boards and calculators in this thread... talking about their advanced math degrees and shit
Yeah I was talking mad shit in the first few pages, but now I do get that the answer is 288...
So I OCKed myself too...![]()
this shit gonna be the new Kobe vs. Jordan...the new Android vs Apple......shit is serious ...cats breaking out the white boards and calculators in this thread... talking about their advanced math degrees and shit
this shit gonna be the new Kobe vs. Jordan...the new Android vs Apple......shit is serious ...cats breaking out the white boards and calculators in this thread... talking about their advanced math degrees and shit