6÷2 (1+2) = ___

[NashvilleNinja]

?

Edited May 5, 2018 by NashvilleNinja

[klaatu'sAngel'sUncle]

9

[WG53]

If you follow your Order of operations then it is 9.

[heyitsmeallen]

1

 

edit. It’s acrually 9. Don’t do math drunk folks. 

[heyitsmeallen]

1 hour ago, WG53 said:

If you follow your Order of operations then it is 9.

PEMDAS. Parentheses first,  then multiplication comes before division. So you do 1+2=3, 3x2=6, 6 /6=1

 

Edit: you are right 

[WG53]

12 minutes ago, heyitsmeallen said:

PEMDAS. Parentheses first,  then multiplication comes before division. So you do 1+2=3, 3x2=6, 6 /6=1

 

Negative.

 

Multiplication and division are on the same level and are done whichever is first from left to right. Same for addition and subtraction.

 

So you do the parentheses first (3) then divide 6 by 2 = 3. Then you have 3 * 3=9.

 

[heyitsmeallen]

19 minutes ago, WG53 said:

Negative.

 

Multiplication and division are on the same level and are done whichever is first from left to right. Same for addition and subtraction.

 

So you do the parentheses first (3) then divide 6 by 2 = 3. Then you have 3 * 3=9.

 

Yeah you are right. That’s what I get for being drunk and trying to do math at 5am. 

[nine]

15 minutes ago, WG53 said:

Negative.

 

Multiplication and division are on the same level and are done whichever is first from left to right. Same for addition and subtraction.

 

So you do the parentheses first (3) then divide 6 by 2 = 3. Then you have 3 * 3=9.

 

 

I answered 1.

 

However,  a couple different calculators have assured me that 9 is the correct solution.

[OILERMAN]

9

[Denali]

6÷2 (1+2) = "You're an asshole for not using parentheses the way they are intended."

 

Edited May 5, 2018 by Denali

[NashvilleNinja]

I think some people assume division because they see 6÷2, but that's only for that particular problem. Multiplication is implied when you see 3 (3).

 

I was watching some YouTube video talking about this and people start throwing around their advanced mathematical degrees and multiple years experience as a computer programmer when fighting with other people trying to convince them that the answer is 1.

 

Hilarious.

[klaatu'sAngel'sUncle]

http://www.slate.com/articles/health_and_science/science/2013/03/facebook_math_problem_why_pemdas_doesn_t_always_give_a_clear_answer.html

[NashvilleNinja]

2 hours ago, klaatu- said:

http://www.slate.com/articles/health_and_science/science/2013/03/facebook_math_problem_why_pemdas_doesn_t_always_give_a_clear_answer.html

“To my mind,” says Grabiner, “the major deficit in U.S. math education is that people think math is about calculation and formulas and getting the one right answer, rather than being about exciting ideas that cut across all sorts of intellectual categories, clear and logical thinking, the power of abstraction and a language that lets you solve problems you’ve never seen before.” Even if that language, like any other, can be a bit ambiguous sometimes.

 

This sounds like some twisted ass common core bullshit. It is not a deficit to hunt down the right answer. Maybe in a humanities or liberal arts course that kind of thinking is fine, but in math there are correct answers and incorrect answers. Making the solutions seem "ambiguous" doesn't change that fact.

 

Idk... maybe I'm misunderstanding the guy's point, but it doesn't sound at all like "clear and logical thinking" to me.

[headhunter]

9

[WG53]

5 hours ago, JakePA_Titan said:

Although that is right about M and D on the same level, I was always under the assumption you worked until the parentheses were gone.

 

So if you got to 6÷2(3), I assumed you did the multiplying first because there are still parentheses in the equation.

 

No?

Once you do the addition within the parentheses it is removed leaving division on the left and multiplication on the right. At that point you just solve from left to right as they are on the same level.

 

essentially 6÷2x3 

so from left to right you get 9.