Quote:
Originally Posted by gen3v8
TIL, 230 - 220 x 0.5 = 5!  |
Quote:
Originally Posted by 86-75309
(230-220)0.5=5
230-(220X0.5)=120
Which is more correct?
|
As originally listed by @
gen3v8 the answer should be 120, unless something has changed about precedence in math I'm not aware of.
I always was taught that grouping for operators is
exponentiation and root extraction
multiplication and division
addition and subtraction
Therefore "230 - 220 * .5" is actually "230 - (220 * 0.5)" which equals 120.
What am I missing?
EDIT: Turns out I am missing something. Read on if you want to find out!