Which is correct?

Which is correct?

Other urls found in this thread:

mathsisfun.com/operation-order-pemdas.html
youtu.be/URcUvFIUIhQ
purplemath.com/modules/orderops.htm
wolframalpha.com/input/?i=6/2(2+1)4
twitter.com/SFWRedditImages

the casio

The one on the right.

mathsisfun.com/operation-order-pemdas.html

The calculator, your phone is doing 6÷2 * 2+1 whereas it should be doing 6÷ 2*(2+1)

Casio
The 2 next to a bracketed sum denotes how many of the answer it is so the brackets would be 3 so it would be 2 lots of 3

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

the phone:
6/2(2+1)
6/2 x (2+1)
3 x (2+1)
3 x 3
3x3=9

Is this supposed to be a rethoric question?

the one where the person who took the picture typed in the equation while the answer to another one is still on screen

PEDMAS motherfucker

Left is correct.
Brackets first so we have 6 / 2(3)
Brackets are multiplication so that leaves us with 6 / 2 * 3
Then since it's multiplication and division, you just work L to R... = 9

I really don't give a shit.

phone

6/2(2*1)

6 / 2 * (2 + 1)

3 * (2 + 1)

3 * (3)

3 * 3
= 25

Yes, let's trust a phone app over a Casio scientific calculator. Welcome to the current year.

PEMDAS, you illiterate, uneducated faggot.

HEY RETARD NIGGERS. WHEN YOU HAVE ONLY ADDITION OR SUBTRACTION OR MULTIPLICATION AND DIVISION, YOU DO THE ORDER LEFT TO RIGHT.

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

or
6/2(2+1)
3(2+1)
3(3)
9

Do you Multiply or Divide first? Obviously the Parenthesis comes first, But there's no clear order for multiply or divide....

wait a minut... the two are correct.

except the phone is right
but only because asshat uses the calculator wrong

Hm... casio fx-350tl has the same bug. I never noticed before...
That's why we can't have nice things.
RPN ftw!

this
any other answer is wrong since Multiplication and Division have the same precedence

I trust Symbolab

see
and go L to R

It;s left to right you fool

6/2x(2/1)
6/(2x2+2x1)
6/(4+2)
6/6
1

They are both equally correct. Common core. This is why we can't have nice things.

it's both of them...

Right to left or Left to right? FUCK

worst math I've ever seen

you can use rpn wrong too and show wrong results too
a tool is only as good as the user

you're using pemdas wrong big boy. even if i did the parentheses problem first, it would still be a left to right equation since it only has multiplication or subtraction

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

youtu.be/URcUvFIUIhQ
mathsisfun.com/operation-order-pemdas.html
purplemath.com/modules/orderops.htm

>In other words, the precedence is:
>Parentheses (simplify inside 'em)
>Exponents
>Multiplication and Division (from left to right)
>Addition and Subtraction (from left to right)

Casio isn't following the rules: you resolve first what's in side the brackets. So, 6/2 x (3), 3 x 3=9

i dont give a fuck

you're making an abortion of the distrubtive property rule

the phone is right

then why did you post it mr.idgaf

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

Multiplication and Division are the same operation, so you read it left to right for order of operations

The answer is 9, cuz when it comes to PEMDAS you go in lect to right order if there are only multiplication and division left.

6/2(2+1)
6/2(3)
Here you go left to right
3(3) =9

Wat

>mfw retards can't tell difference between 6/2*(2+1) and 6/(2*(2+1))

graduate 8th grade please

he is absolutely right

>4114
both at the same time broh.

look out boys
STEM coming through

i should hope so otherwise i'm throwing away my bsc

first good maths I see ITT

lower would be 6/(2*(2+1))

>leaving the parenthesis after distributing
?

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

/thread

would only be the case if the problem were 6/[2(1+2)]

the parentheses are in the fucking wrong place no matter how you look at this I've never been more triggered man fuck you I was having a good day too and then you go and post some bullshit like this fuck you OP

>Rethoric

This indeed

a / b * c = ( a / b ) * c
a / b * c != a / ( b * c)

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

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

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

If you want to distribute, you have to distribute 6/2, not 2. When you distribute you are multiplying the contents of the parentheses by a number, and if you distribute 2 instead of 6/2 you are doing multiplication and division right to left instead of left to right.

wrong

follow the order of operations

The other possible route:
6/2*(2+1)
3*(2+1)
3*2+3*1
6+3
9

Ambiguous bait is ambiguous.

Order of operations states that multiplication and division are on the same level

__6___
2(2+1)

6
--- (2+1)
2

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

Let's trust OP calculator and not your own mind. Welcome to the current year.

6/2*2+1=7

How can you be this dumb?

Agreed

Left. I'm not sure why, but I have a great deal of trust in Wolfram Alpha.

6÷2 (2+1)

>2+1=3
>6÷2×3
>6÷2=3
>3×3=9

How does Casio get away with selling that?

multiply then divide
faggot

Why?

*al

>(2*2)+(2*1)
>4+2
>6
>6/6
>1

No.

6/2(2+1)

First do parenthesis

6/2*3

Then do multiplication OR division equally, from left to right

6/2*3 -> 3*3

3*3 -> 9

PE/MD/AS

this is not how it used to be taught

you must solve the brackets first not convert it to a x faggot

you view it as the parenthesis come first whether it is only multiplication or not

9 is wrong because you have parenthesis all the way to the end

1 is correct

that shits wrong too

>>Parentheses (simplify inside 'em)
the 2 is tied to the parenthesis so it must be done first before division

you cant magically disappear parenthesis

Casio: 6/2(2+1) = 1
Casio again: 6/2*(2+1) = 9

Casio is right

Phone is right.
Because 6/2(2+1) means 6/2*(2+1), furthermore "Parenthesis first" just means that what is inside the parenthesis should be solve first.
However, it's understandable that some people tend to believe in the authority of the scientific calculator. Because we are talking about arbitrary math rules: One could say that 2(2+1) doesn't mean 2*(2+1) plainly, but instead you always have to multiply with the brackets first.
But then, something like 6/2(2+1)4 would be unclear again. Does it mean 6/6*4 (= 4) or 6/2*12 (= 36) or 6/24. Still you would be able to just say it means some of these options. But do you the people who think the answer is 1, can recall any of theses rules in high school? My Casio gives the answer 1, as well. The people who think that this is correct, should then enter 6/(2+1)2. My Casio says that's a syntax error, which means Casio handles brackets in very different way.

Isnt that a limitation of the casio?

since once you solve all parentesis inside. everything becomes on the ruleset of Multi/Div from left to right.

you didnt finish the parenthesis until you 2*3

Indeed, it is.

but the 2 is part of the parenthesis

It is not (the 2 outside) since once all inside the parenthesis is solved, basically it is a result/number itself

You can argue like that, but see the problems with it in .

its attached to the parenthesis so it "solves" the parenthesis

you would NEVER put a number after a parenthesis like that with no operator

"syntax error"
totally improper to put number directly after ()

This is why you all retards need to use explicit writing for shit like this.
Many programs and software will compensate your stupidity at the sake of randomness and some shit on your face.

shorthand is bullshit
always write all parentheses

>6/(2*(2+1))

Write correctly you dumb fuck.

6/2*(2+1)

exactly

I don't see a problem with that:
wolframalpha.com/input/?i=6/2(2+1)4
When should you have learned such a thing in math classes that you can't write a number directly after parenthesis?

if i never learned TO do it...then its incorrect.

Murrican scientists, no fucking wonder all your science comes from israel. Brackets always first faggots

dumbest post itt

But some stated the rule that you can't put a number behind parenthesis. Where do they have these knowledge from?

6-2+(2+1)=6-2+3 is 7 not 2 because + and - have equal precedence so you go left to right so likewise 6/2(2+1)=6/2*3 is 9 not 1 because * and / have equal precedence so again you go left to right

Division is not associative you morons

(a/b)/c!=a/(b/c)