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OBJECTIVES The students will perform the order of operations on integers by following GEMDAS rule.

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24- GAME 3, 8, 10, 4 1,1,5,6 2,2,6,11 1,2,2,4 2,3,4,8

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VOCABULARY order of operations *operation Expression grouping symbols Brackets *Braces *parenthesis Exponents *simplify

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Order of Operations (G.E.M.D.A.S)

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G.E.M.D.A.S. “ ”= Grouping Symbols ( ), [ ] “ ”= Exponent “2 2 ” “ ”= Multiplication “6x8” “ ”= Division “9÷3” “ ”= Addition “7+5” “ ”= Subtraction “10-4”

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What is G.E.M.D.A.S and why do we need it? G.E.M.D.A.S. is also know as the Order of Operations. Order of Operations is the order in which you perform mathematical operations to solve an equation.

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STEPS 1st: Do what is inside of grouping symbol ( ) or [ ]. 2nd: Simplify Exponents. 3rd: Multiply or divide from left to right. 4th: Add or subtract from left to right.

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GROUPING SYMBOLS “( )”, ”[ ] or { }” Used to group equations. Parenthesis ( ) Brackets [ ] or Braces{ } 6[100 - (5+3)] 6[100 - (8)] 6 [92] Answer: 552

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xponents “2 2 ” Used to multiply the same number repeatedly. Exponent tells how many times a base number is multiplied to itself. 5 3 = 5x5x5 =125 5 x 2 Choose the proper way to solve the equation: 2 = 4 4x5 =

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ultiplication “x” Multiplication is just a faster way to add. Choose the proper way to solve the equation: x 3 5 x 3 = = 17 Answer: 17

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ivision “÷” Division is splitting a larger number into smaller parts. Remember to check your division with multiplication = = 5 Answer: 5

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ddition “+” It is tempting to want to solve addition first in an equation. Remember: only solve addition first if it is in parenthesis. ( ) + 81 =? = = 213

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ubtraction ”-” Subtraction is when you take away an equal or smaller amount from a number. You can check your subtraction with addition. 74 – (12 - 4) 12 – 4 = 8 74 – 8 = 66 Answer: 66

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Review rouping symbols xponents ultiplication ivision ddition ubtraction The Order of Operations is: G.E.M.D.A.S.

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Practice 6(4÷2)+3=? 6÷ Answer:

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Practice 7+(6x5 2 +3)=? 7+(6x25+3) 7+(150+3) 7+(153) Answer:

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Practice 15÷(6x2-9) 2 =? 45 ÷ (12-9) 2 45 ÷ (3) 2 45 ÷ 9 Answer:

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Practice -40-(3 2 +5)÷7=? Answer:

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Practice (3x6+2) 3 ÷5=? Answer:

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Tips to Remember: ranny xcuse y earunt ally An easy way to remember PEMDAS is:

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Evaluate the following: – 3 2 = – (3 x 5) 2 = (-5+4) ÷ (4 -7) 2 = (36-6) -12+ (-3) = (-2 x -5) x 5 4 ÷ 5 =

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