Math: 6÷2(1+2) = ?

so the only reason you do the multiplication before the division is because the 6÷2 doesn't have parentheses around it?

So what is your take on it? You can't just create new rules. 1+1 is 2 which is also basic math.

Well, I'm waiting. What is the advanced, magical math that solves the equation?

Distribution is the reverse of factoring. When the fuck did you ever see 6÷2 factored from a number??

Simple property. Google "Eliminating Parentheses by distributive Property"

Totally

The answer is 1.

Its unreal how surely the 9 folks believe they are correct.
Telling indeed.

errr what? didn't you previously reply "Sure does, only if the original equation had parentheses around the (6÷2) then you would be all set."

did you change your mind? does (6 ÷ 2) * (1+2) use the Distributive Property or not?

Back woods Patois

So if I do it that way...

6÷2(1+2)

6 / 2 (3)

6 / 6

= 1

I think the real answer is a formula written in a shitty way when it causes a confusion resulting in more than 1 answer.

7.5?

5 plus-or-minus 4?

GO AHEAD AND TRY TO SAY THAT iS WRONG!!! I DARE YOU!!!1

Six
Divided by
Two times One plus Two

One plus Two equals Three
Two times Three equals Six

Six divided by Six equals One

I only learned through basic Arithmetic in HomeEc. So, please be patient while I slice the Pi...or Pie...or...Heck y'all want it a la mode?

Well, that is the way of the internet these days. Everyone is right, but only because they say it, not because they proved anything, or said anything intellectual backed up by accepted practices.

5 + 4 = 9
5 - 4 = 1

hehe :P

Yes, that is right. You did it as per all the math references out there. You are 1 out of 1000 that actually learned something.

What is 6 divided by 2 groups of 2+1 ?

The 9 folks like me believe they are correct because they were taught that when there is a number before parenthesis it means to multiply.

In the real world people don't do that. When they want you to multiply they write out the times symbol.

I don't know what they taught you in Canada or Australia, but in America you do the math in parenthesis first, then the rest following order of operations.

9


Order of Operations







It seems that each student interpreted the problem differently, resulting in two different answers. Student 1 performed the operation of addition first, then multiplication; whereas student 2 performed multiplication first, then addition. When performing arithmetic operations there can be only one correct answer. We need a set of rules in order to avoid this kind of confusion. Mathematicians have devised a standard order of operations for calculations involving more than one arithmetic operation.

Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right.

The above problem was solved correctly by Student 2 since she followed Rules 2 and 3. Let's look at some examples of solving arithmetic expressions using these rules.


-------------------------------------------------------------​-------------------

This is what I get. The parentheses make that operation separate from the other.

Why is this thread still around lol


Dear Aunt Sally isnt hard to follow

6/2(1+2)
6/2*3
3*3 = 9

Done.

:stewart1:

15 ÷ 3 × 4 is not 15 ÷ 12
[link to www.purplemath.com]

from [link to www.purplemath.com]

"math won't work if you can't be sure of the answer, or if the exact same problem can calculate to two or more different answers."


Oh really? What is the answer to this equation?

x = square_root(9)

"Inside Parentheses" is what they first teach elementary school children. You learn how to really handle parentheses when you get older, by Distribution:

"We use the distributive property to help us find a way around the order of operations while still being sure that we keep the value of the expression."
[link to en.wikibooks.org]

Distribute BEFORE "pedmas" AND use with numbers, possible used to REMOVE parentheses too. [link to www.algebra.com]

Get Rid of parentheses with Distribution:
[link to www.helpalgebra.com]

If there is some factor multiplying the parentheses, then the only way to get rid of the parentheses is to multiply using the distributive law.
[link to www.jamesbrennan.org]

The thread won't die because people like you still don't understand how to do math, and we are trying to help you understand Distributing and Factoring. We are not trying to be "right" but rather point you in the right direction so you can see for yourself.

is the factor multiplying the parentheses 6÷2 ?

Of course it isn't...

However read THIS:

Ref: Purplemath
[link to www.purplemath.com]

I am curious as to how any of you would handle:

z ÷ a(a+b)

Simplify the above equation.

I have a degree in mathematics.

Here is the proof, without changing the equation, to show how the original equation was formed:

6 ÷ 6 = 1
6 ÷ (4+2) = 1
6 ÷ 2(2+1) = 1

If you try it 9, you will have to insert parentheses or a times symbol somewhere along the lines, and end up with an illegal proof.