http://i.imgur.com/4PN1MZp.jpg (huge pic)

6/2(1+2)=1


I'm not sure how I would have done so well if I was confused about basic order of operations. According to the comments on reddit the answer is 9. I am confused now, like when I found out its OK to put one space after a period instead of two. Is there really a difference between ÷ and /?

http://www.reddit.com/r/WTF/comments/2i03tm/we_had_this_argument_for_hours_and_when_we/

10/1/2014 7:37:02 PM

6/2=6*.5

6*.5*3=9

10/1/2014 8:27:45 PM

6/2(1+2)

first you do the addition in the parentheses

6/2(3)

then you divide

3(3)

then you multiply

9

10/1/2014 8:28:51 PM

Please Excuse My Dear Aunt Sally

Parentheses, Exponents, Multiplication, Division, Addition, Subtraction

10/1/2014 8:35:30 PM

^that's misleading though because you don't multiply before you divide. You do them at the same time, left to right

10/1/2014 8:37:30 PM

^but if you divide first you will still get same answer

10/1/2014 8:38:25 PM

This isn't really about order of operations. It's about how calculators work.

10/1/2014 8:38:53 PM

1. Parentheses
2. Exponents
3. Multiplication or Division
4. Addition or Subtraction

just for anyone who is confused.

10/1/2014 8:39:00 PM

^^^if you multiply first you WON'T get the same answer in this instance

10/1/2014 8:40:05 PM

^do what

10/1/2014 8:42:11 PM

if you multiply before you divide, instead of doing it left to right, you'd have:

6/2(1+2)=

6/2(3)=

6/6=

1=wrong

10/1/2014 8:44:16 PM

Proper use of parentheses would help eliminate any confusion

10/1/2014 8:47:52 PM

^^3 times 1/2 times 6



[Edited on October 1, 2014 at 8:52 PM. Reason : or 6 * 1/2 * 3]

10/1/2014 8:49:51 PM

my way you don't have to convert division to multiplying fractions though

you just add the numbers in the parentheses, then do the rest of the problem left to right

6 divided by 2 times 3

[Edited on October 1, 2014 at 8:53 PM. Reason : .]

10/1/2014 8:52:20 PM

^but your way yields incorrect answer

10/1/2014 8:53:38 PM

no it doesnt

6 divided by 2 = 3

3 times 3 = 9

why do you need to add a 0.5 into the equation for no reason?

10/1/2014 8:54:42 PM

Quote :

"6/2(1+2)= 6/2(3)= 6/6= "

10/1/2014 8:55:48 PM

Quote :

"if you multiply first you WON'T get the same answer in this instance"

10/1/2014 8:56:24 PM

Quote :

"I did well in maths"

I was always better at chemistrys

10/1/2014 8:59:02 PM

A.

6
______ = 1
2(1+2)


B.

6
__ (1+2) = 9
2


And 6 ÷ 2(1+2) = 9, but it looks like the Casio interprets the division symbol as a fraction like A., so it's also 1.

Either way, it's a nonissue. If you're trying to do something that matters, you'd make sure you used enough notation so that it wasn't ambiguous.

^^He and moron are saying you could multiply by 1/2 (as if that's not the same thing as dividing by 2).

[Edited on October 1, 2014 at 8:59 PM. Reason : ]

10/1/2014 8:59:11 PM

is this where you say moon landings were fake?

10/1/2014 8:59:38 PM

10/1/2014 9:01:12 PM

there are plenty of ways to do math and get the correct answer

i just happen to think my way is easier since you don't have to convert to fractions/decimals for no reason

10/1/2014 9:01:15 PM

is this a troll thread?

Other than (1+2) PEDMAS, left-to-right, etc. don't matter.

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

10/1/2014 9:02:07 PM

LET'S ADD A 0.5 TO THE EQUATION EVEN THOUGH THERE'S NO NEED TO

10/1/2014 9:03:47 PM

where did the fraction touch you TT?

10/1/2014 9:04:50 PM

it's just an extra step that's unnecessary

there's no need to convert 6 divided by 2 into 6 times 0.5

[Edited on October 1, 2014 at 9:08 PM. Reason : Bridget gets it ]

10/1/2014 9:06:20 PM

I'm also surprised by the number of people who are drawn to the 1/2 in there.

6/2 = 3 to me right away, not 6 * (1/2) and then 3.

[Edited on October 1, 2014 at 9:08 PM. Reason : What he^ said. I'm slow.]

10/1/2014 9:07:56 PM

Quote :

"6/2(1+2)= 6/2(3)= 6/6= "

10/1/2014 9:08:21 PM

^why do you keep leaving out the last part of that post, when i said 1 is the wrong answer

10/1/2014 9:09:01 PM

beatsunc just proved himself wrong in an argument with TT10. Talk about shooting yourself in the foot.

10/1/2014 9:09:24 PM

El Nacho probably found this thread linked from here: https://discussions.apple.com/thread/3416092?tstart=0

10/1/2014 9:10:51 PM

I remember something about how you are supposed to multiply the number next to the parenthesis into the parenthesis first, because 2(x+2) would be 2x+4. If you were to do the 6/2 first you would get 3x+6

[Edited on October 1, 2014 at 9:19 PM. Reason : would you guys do it differently if it was 6/2(x+2)?]

10/1/2014 9:13:36 PM

distribution has nothing to do with that problem. there are no variables.

10/1/2014 9:17:57 PM

how is it not the same thing though?

10/1/2014 9:19:33 PM

it is solved left to right. you divide before you multiply

and before any of that, you solve the addition in the parentheses

see previous posts

10/1/2014 9:20:04 PM

^still same answer right to left

3* 1/2 * 6

[Edited on October 1, 2014 at 9:22 PM. Reason : you can put them in any order you want. ]

10/1/2014 9:21:24 PM

Jesus, some of you are just fucking retarded

10/1/2014 9:21:48 PM

yeah i get that when there are no variables you do parenthesis first. make that 1 an x and simplify, then plug in 1 for x and you get 1. I'm obviously confused. It's been too long.

10/1/2014 9:23:58 PM

you're overthinking it. We're not solving for x. We're just doing a basic math problem with a real number answer.

10/1/2014 9:25:17 PM

I'm not saying solve for x, just simplify the equation statement and then replace x with 1. Is the answer still 9 to you guys? Or do you agree that you distribute the 2 into the parenthesis?

[Edited on October 1, 2014 at 9:29 PM. Reason : d]

10/1/2014 9:28:19 PM

TT10 is all the correct ITT

10/1/2014 9:30:25 PM

Quote :

"^still same answer right to left 3* 1/2 * 6"

ok

then make the problem 6/5(1+2)

so using your method

is 3 * 1/5 * 6 = 6/5*3

[Edited on October 1, 2014 at 9:32 PM. Reason : haha shit i think it is actually. math.]

10/1/2014 9:31:40 PM

I teach this shit to remedial 7th math students on a daily basis. Thanks for making me relive it tww. Everyone ITT but TT would fail my class.

[Edited on October 1, 2014 at 9:36 PM. Reason : 7th grade]

10/1/2014 9:35:28 PM

This is a pretty basic equation. Surprised to see so much arguing about it. Left to right, do the shit in the parentheses first. Not complicated.

[Edited on October 1, 2014 at 9:36 PM. Reason : stupid auto correct]

10/1/2014 9:35:42 PM

I guess I was bad at math all along. Oh well. sigh

10/1/2014 9:36:54 PM

lol they made a 36X Pro?

10/1/2014 9:36:57 PM

unspecified precedence is generally executed in the order the operations are given.

Also "Math" is singular. wtf saying it all british like does not make you look cool

10/1/2014 9:37:48 PM

wasn't really trying to be cool, just think it makes sense that way and like saying it pluralized

[Edited on October 1, 2014 at 9:44 PM. Reason : eh, maybe I was trying. Also I missed my palindrome post count]

10/1/2014 9:42:04 PM

die

10/1/2014 9:46:42 PM