Question

Is the so-called Order of operations incorrect?
Why it is so ambiguous?

Answer 1

@ganeshie8

Answer 2

Shall I give an example to clarify things

Answer 3

ok?

Answer 4

incorrect it what way

Answer 5

8-2+1 = According to the order of operations 8-(2+1) = 8-3 =5

WE can also write this as

8+(-2) +(1)
=7

Answer 6

what is this??

Answer 7

So we can argue that the Order of operations is incorrect

Answer 8

when we have same priority of operators, we always go from left to right

Answer 9

noooo

Answer 10

+ and - have same priority

multiplication and division have same priority

Answer 11

8-2+1 is always 6

Answer 12

if you add the brackets, you CHANGE the PRIORITY

Answer 13

PEDMAS
Tells to solve addition first i learn't this in 4th so my math teacher was incorrect

Answer 14

your teacher told u half of the rule

Answer 15

8-(2+1)
here you are addind Paranthesis!

Answer 16

paranthesis have highest priority

Answer 17

8-(2+1) = 8-3 =5 this is incorrect man

Answer 18

To seperate the magnitudes and follow the PEDMAS

Answer 19

no, your math teacher is correct but she may have not mentioned the whole thing because if addition and subtraction or multiplication and division are used without parenthesis you must from left to right ALWAYS

Answer 20

\(8-2+1 \ne 8-(2+1)\)

Answer 21

Yeah that kindoff clarifies my doubt

Answer 22

@hartn and everybody :)

Answer 23

if you write 8-(2+1)
it becomes 8-2-1 which is not equal to 8-2+1

Answer 24

you cannot add paranthesis as per your wish :P

Answer 25

^ read the comments as well

Answer 26

Element1154 weeks ago

You are VERY WRONG. While it's true that it's called PEMDAS, it doesn't mean addition before subtraction. If you went to elementary school, you would know this. You do the one that comes FIRST in the problem. The same thing goes with multiplying and dividing. You do which ever comes first.

remove this Video because you obviously don't know PEMDAS and go back to elementary. 

Answer 27

o_o

Answer 28

thats what he says ofcrs

Answer 29

i think even real number line also answers most of the doubts you have
if you consider solving problems that way

Answer 30

LOL, Its not my fault that's that's what i have been taught .

Answer 31

If my doubts were clear why would i even post this

Answer 32

Yeah saw that comment. haha

Answer 33

That's why I changed my school, teachers their didn't know what the **** they were teaching. I know the hi-fi stuff but i lack in basics. This is the reason

Answer 34

my IIT teachers used to say,if you learn advanced..u clear basics easily

Answer 35

No one talks about these things when you move to 11th or higher grades.

Answer 36

Dosen't matter what even if you do some high-level calculus , if your basics aren't clear you are no where. I blame my teachers for it seriously (teachers in lower grades)

Answer 37

hahah
thats pretty much true
i had good teachers in 11th grade for IIT
but later they all started to leave,and we were left with idiotic ones and what knowledge i had about my advanced studies also became rusty
so it depends on teachers alot when you are looking at something new,or even something old at times

Answer 38

yes very true