3 Order of Operations: What does it mean? Break it down into parts:OrderOperationsofWho goes first in line?-
4 Who goes first? Do I multiply or subtract first? Why does it matter? Soooooooooo…….The order of operations is the order in which EACH operation is performed in an expression or equation!5 x 13 – 10Who goes first? Do I multiply or subtract first? Why does it matter?
5 Why???There is a certain order in which multiplication, division, addition, and subtraction must be performed when they are grouped together.If you do not use the proper order, your answer will be incorrect!
6 Just remember to excuse this lady: Who goes first?Just remember to excuse this lady:Aunt Sally!
7 To remember which order to do each operation: SPlease Excuse My Dear Aunt Sally!
8 P M D A S Parentheses Multiply or Divide Add or Subtract exponentsMDMultiply or DivideASAdd or Subtract….and one more thing.
9 YOU MUST ALWAYS SOLVE FROM LEFT TO RIGHT!(EVERY TIME!)
10 Let’s try a few examples: To do this, get on the train and go in order from left to right following PeMDAS!Let’s try a few examples:Which operation would come first, second, etc…x 472 ÷ 3 – 1020 x (10 – 7)