Math Problem

[OpticFusion]

Answer this question 

 

Thanks 

[Trik'Stari]

the answer is 1 since you multiplied by zero before adding a 1. Anything times zero is zero.

[ZacDaMan72]

21

 

JKJK

 

@Trik'Stari you do know BEDMAS right?

[TheRetiredSlave]

Remember PEMDAS, people.. 

 

41.. 

[mansoor_]

left to right solve inner most bracketed problem consecutively.  then left to right division and multiplication. followed by left to right addition and subtraction. 

[Jeroen1322]

O.K so 40+40=80, 80 x 0= 0, 0+1= 1. But that answer is not correct. x comes before + so it is 40x0, + 40+1. So 41. 

[AlwaysFSX]

the answer is 1 since you multiplied by zero before adding a 1. Anything times zero is zero.

Wat... No it isn't?

 

40 + 40 x 0 + 1

40 x 0 first

leaves 40 + 1

41

[chicksoup]

it always amazes me how many people can't get the answer right on problems like this

[Trik'Stari]

Wat... No it isn't?

 

40 + 40 x 0 + 1

40 x 0 first

leaves 40 + 1

41

I always forget order of operations damnit. Part of the reason I hate math

[Lingering]

Remember PEMDAS, people.. 

 

41.. 

 

Weird I know this as BODMAS

[Blueprint]

Remember PEMDAS, people.. 

 

41.. 

PEDMAS? Haha that's funny, we use BODMAS in the UK (or where I live). What does the E stand for?

[AlwaysFSX]

I always forget order of operations damnit. Part of the reason I hate math

..how..

[Guest Philosophy]

41, but what is the point here?

[Trik'Stari]

..how..

No parentheses, was thinking "no parentheses, start left to right". Again, hate math so much, even did it with a calculator and got 41. >.<

[OpticFusion]

Look at comments here 

https://www.facebook.com/ThisisLADY/photos/a.149576188404935.26238.149423348420219/874291169266763/?type=1&theater

[AlwaysFSX]

No parentheses, was thinking "no parentheses, start left to right". Again, hate math so much, even did it with a calculator and got 41. >.<

If no parentheses and multiplication sign, start there.

 

[Trik'Stari]

If no parentheses and multiplication sign, start there.

 

I still don't see why it's done like that. I've never understood how it made sense to start in the middle of a problem rather than from left to right, unless there are parentheses.

[AlwaysFSX]

I still don't see why it's done like that. I've never understood how it made sense to start in the middle of a problem rather than from left to right, unless there are parentheses.

Because. I had my teacher explain it to me once, but like all classes I never listened.

[Sheldon_King]

PEDMAS? Haha that's funny, we use BODMAS in the UK (or where I live). What does the E stand for?

the e is for exponent.

 

Parenthesis

Exponent

Multiply/Divide (left to right)

Add/Subtract (left to right)

[Trik'Stari]

the e is for exponent.

 

Parenthesis

Exponent

Multiply/Divide (left to right)

Add/Subtract (left to right)

but WHY. Parentheses I get, but multiplying and dividing before adding and subtracting makes no sense to me.

[Sheldon_King]

but WHY. Parentheses I get, but multiplying and dividing before adding and subtracting makes no sense to me.

To be honest, I do not know why. In school, I just learned why the rules are, not why they are (then again, I never paid attention in anything but History and Band).

[smjpl]

I still don't see why it's done like that. I've never understood how it made sense to start in the middle of a problem rather than from left to right, unless there are parentheses.

 

Math doesn't care where you start. You will always get the same answer (as long as you do it right)

[OpticFusion]

look at the comments 

https://www.facebook.com/ThisisLADY/photos/a.149576188404935.26238.149423348420219/874291169266763/?type=1&theater

[Trik'Stari]

Math doesn't care where you start. You will always get the same answer (as long as you do it right)

Not true, using the "order of operations" you get the answer of 41 to the OP's problem, however if you do it from left to right you get

40+40=80

80x0=0

0+1=1

[smjpl]

but WHY. Parentheses I get, but multiplying and dividing before adding and subtracting makes no sense to me.

 

Think of it this way. You have to keep like with like. This make sense? And multiplication is just a shorthand way of doing addition. So you have to do the multiplication first in order to get it into a form of addition.

 

Example: So 5 x 3 is actually 5 + 5 + 5. It means add three fives together. So now that we have done the multiplication, everything is in terms of addition (hence like with like)

 

So 5 x 3 + 5 is actually 5 + 5 + 5 +5

 

^^ NB! Don't apply this logic to more complicated problems. It will probably breakdown at some point. Just use the rules you are taught.

 

And it doesn't matter which way you arrange it. 5 x 3 + 5 == 5 + 3 x 5 == 5 + 5 x 3 == (5 x 3) + 5. They all give you the same answer.

 

Edit: When I mean math doesn't care which way you do it, I mean you can rearrange the equation and still get the same answer.