3Order of Operations: What does it mean? Break it down into parts:OrderOperationsofWho goes first in line?-
4Who 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?
5Why???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!
6Just remember to excuse this lady: Who goes first?Just remember to excuse this lady:Aunt Sally!
7To remember which order to do each operation: SPlease Excuse My Dear Aunt Sally!
8P M D A S Parentheses Multiply or Divide Add or Subtract exponentsMDMultiply or DivideASAdd or Subtract….and one more thing.
9YOU MUST ALWAYS SOLVE FROM LEFT TO RIGHT!(EVERY TIME!)
10Let’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)