What is does order of operations mean....?

Question

rebeccaxhawaii · Answer

WELCOME TO OS 
order of operations is PEMDAS
it is the order we do things in

P-parenthesis
E-exponents
M-multiplication
D-division
A- addition 
S-subtraction

anonymous · Answer

So pretty much when you have an equation you deal with the parenthesis first. Then you solve any exponents, next you would solve any multiplication from left to right, then any division from left to right, then any addition from left to right, and finally subtraction from left to right.

unklerhaukus · Answer

multiplication and division from left to right,
then
addition and subtraction from left to right.