6/2(1+2)= ?

Question

I saw this equation on facebook and i cant figure out if it is 9 or 1.

Answer 1

A common way to remember the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally".  It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".

Assuming you intended 6 divided by 2*(1+2):  6/2(1+2) = 6/2(3) = 6/6 = 1

Then again, if you really meant to write (6/2) * (1+2) = 3*3 = 9    :-))