Does PEMDAS mean that multiplication always goes before division, or is it whatever comes first in the problem? Same for Addition and Subtraction.

Guest Apr 28, 2015

#1**+11 **

PEMDAS = parentheses, exponents, multiplication, division, addition, subtraction... (in that order) from left to right in the equation

BrittanyJ
Apr 28, 2015

#2**+3 **

yes, multiply goes before divide, and add is before subtract,

pemdas is not just parentheses, exponents, multiplication, division, addition, subtraction, it can also be:

Please Excuse My Dear Aunt Sally

TitaniumRome
Apr 28, 2015

#4**+13 **

Best Answer

**THAT IS NOT QUITE CORRECT **

**Multiplication and division are equally important**. You do these **left to right**.

ALSO

**Addition and subtraction are equally important**. Again do this from **left to right.**

Melody
Apr 28, 2015

#5**+8 **

NO.....NO....NO.....folks !!! What Melody says is correct.....!!!!

The "Parentheses" and "Exponents" part is correct.

But, multiplication and division are done at the same level of * precedence........this means that we perform whichever of these comes first* as we move from left to right....!!!!

For instance......

20 รท 5 x 2

It is incorrect to multiply 5 x 2, first, and then perform the divison second. This results in an answer = 2.

The correct order is to divide the 20 by 5 and then multiply this result by 2 = 8. Note that this is quite different from 2 !!!!

Addition and subtraction are also performed at the same level of precedence, but these usually don't cause too much of a problem. It's usually the multiplication/division that give people trouble.......

CPhill
Apr 28, 2015