Pemdas is the same thing: Parenthesis exponent multiply AND divide addition AND subtraction The 'and' means that the 2 types of math functions can switch, meaning it could be: Parenthesis exponent [i]divide[/i] AND [i]multiply[/i] addition and subtraction Same thing goes for add/subtract The only reason that the 2 functions would switch depends on which one comes first in the equation, in this case 6 is DIVIDED by 2 BEFORE the multiply (hence, they are switched)