Order of Operations ÷ + - X.

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Presentation transcript:

Order of Operations ÷ + - X

What is order of operations? In math, there is a certain way to do certain math problems. When you’re doing a math problem with more than one operation (x, ÷, +, -) there’s a certain order you must follow. For example: Which operation do you do 1st? 3 + 5 x 3 ÷ 3 = ? + x ÷ Which operation do you do 2nd? Which operation do you do last? Three different operations.

Please Excuse My Dear Aunt Sally E M D A S Parentheses 1st Exponents 2nd Multiplication or Division Next Addition or Subtraction Last

Please Excuse My Dear Aunt Sally 7 + 6 13

Please Excuse My Dear Aunt Sally 8 + 9 - 5 17 - 5 12

Please Excuse My Dear Aunt Sally 3 + 15 ÷ 3 = ? 15 ÷ 3 3 + 5 3 + 5 = ? 8

Please Excuse My Dear Aunt Sally 3 + 5 8 x 3 8 x 3 ÷ 6 = ? 24 ÷ 6 = ? 24 ÷ 6 4

Please Excuse My Dear Aunt Sally (3 + 10) ÷ 3 = ? 3 + 10 13 ÷ 3 13 ÷ 3 = ? 4⅓

Please Excuse My Dear Aunt Sally 3 + 5 3 ÷ 3 8 x 1 = ? 8 x 1 8

Please Excuse My Dear Aunt Sally 2 2 2 + 8 x 3 = ___ 8 2 + 64 x 3 2 + 192 194

Please Excuse My Dear Aunt Sally 5 ÷ 5 1 x 3 1 x 3 ÷ 3 = ? 3 ÷ 3 = ? 3 ÷ 3 1

Please Excuse My Dear Aunt Sally 5 X [( 5 + 3 ÷ 3 ) x 3 ] = ___ 3 ÷ 3 5 X [( 5 + 1 ) x 3 ] = ? 5 + 1 5 x [ 6 x 3 ] = ? 6 x 3 5 x 18 = ? 5 x 18 90