Order of Operations

BrainPop!  bersandoperations/orderofoperations/ preview.weml bersandoperations/orderofoperations/ preview.weml

Definition  The order in which mathematicians perform math problems. 1)Parenthesis – working inward outward 2)Exponents 3)Multiply or Divide – Left to Right 4)Add or Subtract – Left to Right

Mnemonic P lease Parenthesis ( ) E xcuse Exponents M y D ear Multiply or Divide – Left to Right A unt S ally Add or Subtract – Left to Right

PEMDAS Hopscotch Parenthesis ( ) Exponentsx Multiply x Divide / Add + Subtract - Always read from left to right as you complete each step!

Example 1: 2 x 3 - (4-2) Multiplication Parenthesis Subtraction Addition Exponents

2 x 3 - (4-2) x Parenthesis Exponents Multiply 2 x Add or Subtract – Left to Right

Example 2: 4 X 6 – (3 + 4) Multiplication Parenthesis Subtraction Addition Exponents

4 X 6 – (3 + 4) x Parenthesis Exponents 24 – Multiply 4 X 6 – Add or Subtract – Left to Right

Practice Problems x 7 2.(1 + 3) x (8 - 4) (7 - 0) (5 - 1) x 8 – / 6 x 2 x 2 / x (4+(6 x 3-8)) x2 Answer

3 + 5 x Back

(1 + 3) x (8 - 4) 4 x (8 – 4) 4 x 4 16 Back

(7 - 0) – 7 6 – – 7 7 – 7 0 Back

(5 - 1) – 3 4 – – 3 5 – 3 2 Back

3 + 9 x 8 – X 8 – – – Back

24 / 6 x 2 x 2 / 4 4 x 2 x 2 / 4 8 x 2 / 4 16 / 4 4 Back

2+3 x (4+(6 x 3-8)) x x (4 + (18 – 8)) x x (4 + 10) x x 14 x x Back

Practice  In your textbook, Page: Numbers:

Review  evaluate-a-numerical-expression- using-order-of-operations evaluate-a-numerical-expression- using-order-of-operations