Again, if you know how to properly add negative numbers then the order does not matter. The answer is still 0
This is so hilarious. What if I want to just go ahead and subtract rather than use this ultra-super jedi math trick of first converting the subtraction to adding a negative? Would that be okay?
Whatever. If you think that the order of the numerals matters in an equation which contains only addition and subtraction, and that the result will vary depending on the order you place them in the equation, you have demonstrated very clearly exactly how much you understand about basic math.
The answer is 288. And as far as addition and subtraction is concerned, it makes no difference what order you do it in. Please people, this is getting so ridiculous. 3rd grade mathematics and grown adults are failing to grasp simple concepts.
oh now I understand what G's facebook post was all about. I didn't read the whole thread, but the math teacher in me wants to teach yall a lesson in order of operations... but I won't
For those of you guys saying people who claim 2 are idiots, let me pose a question: 48/xy. where x=2 and y = 12. How would you view that equation as? 48/(xy) or 48/x * y. Most people will say 48/(xy) because by grouping them together the person posing the equation is implying he wants them together. There is no rule, it's how you interpret what the person posing the equation wants. If he really meant 48/x*y, he would not have stated the equation in such a fashion (unless he meant to be confusing). He would have stated 48y/x. Now a person wanting 48/(xy) can very well state it 48/xy because many people know that is what he is intending despite it technically being incorrect. Now why not pose it as 48/(xy)? laziness. You don't have to write out parenthesis every time. When you take notes or jot down steps in how you solve a problem, you are not going to write the parenthesis in.
Okay. Let me try one more time. 1. The order of the numerals does matter regardless of whether there is only type of operator in the equation or not. Example: 1 - 3 - 2 = -4 reordering the numerals... 3 - 2 - 1 = 0 2. Now, I hope what you really meant to say was that the order of operations does not matter if there is only one type of operator in the equation (unfortunately, you probably really did mean what you said). And the point I was trying to make before is that the order absolutely matters when solving the problem directly without applying Nero's ultra-super jedi conversion tricks to get the entire equation using only one type of operator (in your example, the addition operator). Perhaps using an example with multiplication and division instead (where you may not be as keen to convert first) would help illuminate this for you. Example: 6/3*2 = 4 (order very much matters - please tell me you agree here) And just for you: OH NO! TWO DIFFERENT OPERATORS! MUST CONVERT TO ONE OPERATOR OR CANNOT SOLVE BECAUSE THE ORDER OF OPERATIONS IS JUST TOO COMPLEX! 6*(1/3)*2 = 4 (edited this to make it more clear that the 6 divided by 3 is now converted to 6 multiplied by the fractional one third)
Do you really want the lesson? I've spent hours and hours teaching this to 6th graders this year. Here's the short version: Parenthesis first - that makes the 9+3 a 12 - yall got that one for the most part Exponents next (none of those in this particular problem) then Multiplication/Division - you do these in order from left to right - in the case of this problem you do the 48 divided by 2 = 24 - then you multiple the 24 by the 12 giving you the correct answer of 288 the next two Addition/Subtraction - you do these in order from left to right There you have the short short version of order of operations
Hayesfan, read my post and tell me whether you agree or not. I agree the answer is indeed 288, but if someone were to pose the question as is and genuinely wants an answer, I would still say 2, because I am assuming he wants the 2(9+3) together in the denominator. Otherwise, there is no reason for him to pose that equation in that form.
If it were in a fraction form you do the order of operations in the numerator and denominator independently... so yes in that instance this sign / is indicative of designating a numerator and a denominator. This is where you would do the denominator multiplication before you do the fraction/division part of the problem. In this particular problem we don't use the fraction bar, we are using a division sign... that's where the difference lies.
Because people are lazy. I would much rather assume that they wanted to group the 2(9+3) together rather than posing the equation in such an idiotic manner. Seriously, how many people would actually write this equation out in this manner? 48(9+3)/2 is typically how people would write it out. Since they wrote it in this fashion 48/2(9+3), I simply assume that they were lazy and wanted the 2(9+3) grouped rather then having to type out the equation with extra parenthesis in 48/(2(9+3)) fashion. If I were to write this following equation out to you, what do you interpret my intentions were? 1/xy(1+z)+3/ac^dv 1) 1/(xy(1+z))+3/(ac^(dv)) or 2)(1+z)y/x + (3vc^d)/a
This is really amazing. In the simple addition/subtraction problem you are referencing, there are the following three numbers: 2, 1, and -3 Some how you think that talking about entirely different numbers: 1, -3 and -2 and then: 3, -2 and -1 ..is somehow RE-ORDERING the first set. It is not. You are talking about completely different numbers. In your first example, you changed the 2 to a -2, and in your second example, you changed all three numbers from positive to negative, and vice-versa. Of course the results are different. YOU USED COMPLETELY DIFFERENT NUMBERS. If you don't understand this, then I really don't know what else can be said.. hmm, lemme try this this way: if you happen to have a checkbook, and you actually balance it, you will notice that each month, your checkbook probably contains both deposits (positive numbers) and debits (negative numbers). Now imagine that you are balancing your checkbook, by subtracting the debits and adding the deposits. Do you REALLY think it matters which order you do them in? Seriously?
