What is the answer to this

[Data-Hawk]

Lol.. At these equations. They always put the part where people go wrong right in the middle..

 

[Supercoolmayo]

Math teachers crying in this thread

 

[Zardoz]

in the uk if you just put the numbers straight forward like that then it equals 1. we use brackets if we want to multiply the answers of a sum.

so for instance it would be (40+40) X (0+1). this would equal 81.

if you just type out the question like this 40+40x0+1 then you just do the simple math in the correct order. this would equal 1.

so the only 2 answers you can get are 1 and 81. no 41 in sight.

Was wondering how someone could come up with 81, but breaking up the equation like that makes some sense.

So everyone in this thread is right in a way - it's just where you place the brackets.

 

[Audemar]

So everyone in this thread is right in a way - it's just where you place the brackets.

It has nothing to do with brackets honestly; it's about order of operations. People just need to accept that they were never one to pay attention in Math class.

 

[itsyoung!!]

 

[itsyoung!!]

Was wondering how someone could come up with 81, but breaking up the equation like that makes some sense.

So everyone in this thread is right in a way - it's just where you place the brackets.

place what brackets? there are no brackets in the equation you just cant make up brackets

whole thread

 

[Zardoz]

It has nothing to do with brackets honestly; it's about order of operations. People just need to accept that they were never one to pay attention in Math class.

Brackets are not only an operation, but it's also the first in that order.

place what brackets? there are no brackets in the equation you just cant make up brackets

whole thread

If only that were true.

Your way only works if you used a classic calculator and jotted in each number and operation bit-by-bit. Putting everything in one go however will automatically include brackets if you haven't done so yourself.

 

[Audemar]

place what brackets? there are no brackets in the equation you just cant make up brackets

whole thread

I'm saying breh. Even if you were to add brackets, for whatever reason, you still couldn't just change the original meaning of the expression.

 

[GodinDaFlesh]

The answer is 41, but that I always thought that PEMDAS shyt was stupid. Wouldn't it make more sense to just go in order from left to right?

 

[Zardoz]

I'm saying breh. Even if you were to add brackets, for whatever reason, you still couldn't just change the original meaning of the expression.

Please tell me you're joking.

Wolfram Alpha strangely throws in brackets and interprets it as: 40 + (40 x 0) + 1. Therefore making it 41.

And I remember that programming languages like Python do this too. They break up equations into segments with brackets before answering them.

Python Programming/Basic Math - Wikibooks, open books for an open world

The answer you get depends on where the brackets are.
(40 + 40) x 0 + 1 = 1
40 + (40 x 0) + 1 = 41
40 + 40 x ( 0 + 1) = 80

 

[Audemar]

Brackets are not only an operation, but it's also the first in that order.

The given algebraic expression has no brackets/parentheses. Adding brackets/parentheses can change the entire expression's meaning, which is what people are doing to fit their own answers; you can't just do that.

The answer is 41, but that I always thought that PEMDAS shyt was stupid. Wouldn't it make more sense to just go in order from left to right?

Some countries, read from right to left. People also have different preferences so it's better to have a standard. It's akin to naming chemical compounds. There may be several ways to name a particular compound and people would just choose whichever one they feel so a standard is needed. Without a standard, it would cause too much confusion/error, as can be seen in this thread. Example: I calculated $81. You still owe me 40. I calculated $41.

EDIT:

Please tell me you're joking.

Those are all different expressions. (2+2)+5 is a different expression from 2+(2+5). When you're in a classroom setting you can't just throw brackets/parentheses in and do whatever you feel. The given expression is: 40 + 40 x 0 + 1. No parentheses or anything, which is different from (40+40)*0+1. Different programming languages also follow different rules/conventions, which is something you would know if you programmed.

 

[KingFreeman]

Where the coli math thread at so learning brothas can eat?

 

[Zardoz]

The given algebraic expression has no brackets/parentheses. Adding brackets/parentheses can change the entire expression's meaning, which is what people are doing to fit their own answers; you can't just do that.

Saying there are none makes no sense. Whatever lengthy equation you input WILL be broken down through the use of these.
And yes, you'll get different answers on how you solve it. Jotting it down on a basic calculator will give you different results compared to using a site that solves long equations.

Python Operators: Order & Precedence - Python - The Hello World Program

If you input 1+2*3, you get 7 when you probably expected 9.
That's because whatever you used probably prioritizes multiplications over additions, thus breaking up like 1+(2*3).

 

[HoloGraphic]

Bedmas

Bracketes
Equations
Division
Multiplication
Addition
Subtraction

Thought it was 81 at first, its 41.

 

[Zardoz]

Those are all different expressions. (2+2)+5 is a different expression from 2+(2+5). When you're in a classroom setting you can't just throw brackets/parentheses in and do whatever you feel. The given expression is: 40 + 40 x 0 + 1. No parentheses or anything, which is different from (40+40)*0+1. Different programming languages also follow different rules/conventions, which is something you would know if you programmed.

I like how you just contradicted yourself, thus proving that it CAN be interpreted as different equations.