8/2(2+2)

[spurraider21]

After a certain point in math division is virtually always written as a fraction. So yeah, it's easy to understand why people would.

ok but the division sign is still the input you would use on a graphing calculator. you would have to appropriately use parentheses to define what is or isn't in the denominator. short of that, you cant just assume that it is, and you apply the basic rules and move left to right

[baseline bum]

I hate to agree with him bc he's sick in the head and annoying, but Millennial Messiah is right.

The issue as I have come to conclude is the math problem would get thrown out of a test bc it's written ambiguously. You treat the bottom part of a division symbol as a denominator unless explicitly told otherwise.

There is a reason why after fifth grade they don't write that division symbol for questions like this in tests for any math class. They use the "/" fraction sign.
That's why the answer is 1.

The / sign doesn't make it any less ambiguous.

[LaMarcus Bryant]

ok but the division sign is still the input you would use on a graphing calculator. you would have to appropriately use parentheses to define what is or isn't in the denominator. short of that, you cant just assume that it is, and you apply the basic rules and move left to right

Well yeah of course. But at what point in your math education are they going over this? Like I said baby level math. After a certain point you just read the division as a fraction, specifically to avoid mathematic semantic disagreements such as this.
Usage of the fraction would make crystal clear to the questioner and the test taker what the test is asking for. Which is why they use fractions in higher level math

[spurraider21]

Well yeah of course. But at what point in your math education are they going over this? Like I said baby level math. After a certain point you just read the division as a fraction, specifically to avoid mathematic semantic disagreements such as this.
Usage of the fraction would make crystal clear to the questioner and the test taker what the test is asking for. Which is why they use fractions in higher level math

of course it would make it easier to see.

that doesn't mean you have an excuse to change the basic rules and declare that the actual answer is 1 because its an easy mistake to make. that still makes it a mistake

[Millennial_Messiah]

Everything below the / is a denominator

That's why nobody uses ÷ past like 4th grade.

8
__________

2(2+2)


Solve.

[Millennial_Messiah]

8÷2(2+2) = 16

8/2(2+2) = 1


Okay?

[Chucho]

MM getting a W. Good for him.

[Millennial_Messiah]

MM getting a W. Good for him.

It's the standard

[LaMarcus Bryant]

Can't believe I agree with guitar brah

[pgardn]

It should really be written as 8/(2(2+2))=

[Millennial_Messiah]

It should really be written as 8/(2(2+2))=

In the calculator you always do that to guarantee the correct outcome.

[baseline bum]

It should really be written as 8/(2(2+2))=

Or (8/2)*(2+2).

[pgardn]

Or (8/2)*(2+2).

The inner most parenthetical operation will be performed first in my illustration. Then the next parenthesis left. Then you have no parenthesis left so just do the last operation.

Yours is also correct in that either parenthetical can be performed first as long as you solve the remaining parenthetical next. And then carry out the last operation that has no parenthesis left. No parenthesis enclose another so Yep.

I will add that I hate square root signs because they might look like division.

so for me on this board, 9^(1/2) =3 or 9^(0.5) = 3

I also don’t like the integral sign because I simply can’t write it well. But it makes sense as a summation.

[baseline bum]

The inner most parenthetical operation will be performed first in my illustration. Then the next parenthesis left. Then you have no parenthesis left so just do the last operation.

Yours is also correct in that either parenthetical can be performed first as long as you solve the remaining parenthetical next. And then carry out the last operation that has no parenthesis left. No parenthesis enclose another so Yep.

The (2+2) is a distraction. The (2+2) in parentheses always gets done first. 8/2*4 is the ambiguity.

[pgardn]

The (2+2) is a distraction. 8/2(2+2) = 8/2*4 is where the ambiguity comes in. The (2+2) in parentheses always gets done first.

Agreed.

[Millennial_Messiah]

Or (8/2)*(2+2).

That's how you get the 16

The inner most parenthetical operation will be performed first in my illustration. Then the next parenthesis left. Then you have no parenthesis left so just do the last operation.

Yours is also correct in that either parenthetical can be performed first as long as you solve the remaining parenthetical next. And then carry out the last operation that has no parenthesis left. No parenthesis enclose another so Yep.

I will add that I hate square root signs because they might look like division.

so for me on this board, 9^(1/2) =3 or 9^(0.5) = 3

I also don’t like the integral sign because I simply can’t write it well. But it makes sense as a summation.

Just use ∫ if you're using it on the computer... google is your friend

[pgardn]

Everything below the / is a denominator

That's why nobody uses ÷ past like 4th grade.

8
__________

2(2+2)


Solve.

Yep but this becomes Tedious.

8
_
2
_
2+2
_
2/3
_
(1/2)^(1/2)

[pgardn]

That's how you get the 16


Yes it is.


Just use ∫ if you're using it on the computer... google is your friend

K

but I do things with pencil and paper as I play in variable land.

[baseline bum]

I also don’t like the integral sign because I simply can’t write it well. But it makes sense as a summation.

You should study Japanese tbh. Nothing like drawing kanji such as 歳 (used for age)、龍 (dragon)、犠 (roughly sacrifice), 愛 (love) by hand.

[Spurminator]

You're all ing idiots, it's 64.

[pgardn]

You should study Japanese tbh. Nothing like drawing kanji such as 歳 (used for age)、龍 (dragon)、犠 (roughly sacrifice), 愛 (love) by hand.

I have trouble printing the alphabet.

My Greek letters suck...

Hopeless.

[tlongII]

16

[Trainwreck2100]

Meh if you want an interesting math question jump down the rabbit hole that is the axiom of choice. Or maybe how complicated the idea of infinity is mathematically.

the proof behind the 2nd infinity is one of my favorite

[baseline bum]

the proof behind the 2nd infinity is one of my favorite

Yeah the diagonal proof is ing awesome. First saw it in Baby Rudin with sequences of 0 and 1, which also proved the segment [0,1] is uncountable when you consider binary representations of numbers. Sad that Cantor went nuts studying this .

[Trainwreck2100]

it should be noted that for anyone reading the article both the mathematician and the theoretical physicist agree the answer is 16. The doctoral statistics student declined to answer.