beelal
4210
118
5
Mar 1, 2017 6:24 PM
beelal
4210
118
5
panofbread
Holy shit, these made me laugh, and then made me sad because I laughed.
madcarrots
holy shit this made me realize that i haven't taken math in 20 years.
RavioliRavioliEndMyExistenceoli
I don't understand almost all of these and I'm about to go to college, how fucked am I?
KonsolenLandwirt
Math courses usually start at the very beginning, but strap yourself in or you get whiplash from the exams
Lierofox
So...is Common Core just "Ignore PEMDAS and read the equation left to right" or is it even more retarded than that?
I8rmnky
Under PEMDAS, Mult/Div is solved left to right. All Mult/Div is performed before Add/Sub, which is then solved left to right under PEMDAS.
DoctorDelta
The problem in the example is poorly formatted. Better bracketing would resolve it. It's like writing a sentence without punctuation.
aBadDrawingOfAFishEveryDay
In reality that's true, but compilers for instance have well defined operator precedence.
DoctorDelta
Reality is the only thing I'm interested in. The problem would be in a real math book read by real people. Poor definition is a big issue.
difultakveh
No. The answer should never have been 1 under order of operations, as parentheses only change order for what is inside them. The issue comes
difultakveh
from assuming that the multiplication outside the parentheses (implied from no sign) is affected by the parentheses at all
I8rmnky
#5 The correct answer is 16. It's always been 16. It has nothing to do with common core. There is no "old way" that gets you 1.
Deunderscoremoralize
That is the ugliest way of writing an equation I've ever seen in my life Write fractions normally so we dont misread what the denominator is
trashbaby2k14
I personally wanted to calculate what looked like the denominator first but parentheses can fix this
twatswatterphilosopher
Oh good. I got 16 too old school style. "Please excuse my dear aunt Sally", people.
EngineeringProfessor
There is a way, it's just wrong. The old way in this case apparently means following common misconceptions about order of operations.
beelal
I have a solution. Don't write maths like that. Ever.