Order Of Operations-Guided Notes - Steilacoom

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NotesName:Order of Operations-Guided Notes Target Objective: Order of Operations with Positive IntegersI. Order of OperationsA. Vocabulary : the order in which you performoperations in a math problemoThe order of operations tells you the order in which you should go about solvingproblems like these:Ex) 3 5 x 6Ex) 10 2 4 x 3Ex) 5 x (3 4) – 3B. What is the order?* You should always solve math problems in the following order:Parenthesis – (also called grouping symbols)ExponentsMultiplication OR Division – (whichever comes first)Addition OR Subtraction – (whichever comes first)C. Parentheses The parentheses symbol looks like this .Ex) 7 (9 4) Parenthesis can also look like this . We call these.Ex) 3 x [7 1] You ALWAYS want to work from the inside parenthesis to the outside parenthesis.Ex) 3 [4 – (2 1)]

ExamplesDirections: Simplify each expression.Ex) 7 (8 4)Ex) 3(7 4)Ex) 2 [5 – (3 1)]Ex) 3(20 – 14) (9 1)Ex) [(5 2) – 2] x 6D. Defining Powers & Exponents The following is an example of an exponent and its base:12 We say this is “ to the The exponent tells you how many times you should multiply the by.”Directions: Simplify each expression.Ex)20 Ex)21 Ex)22 Ex)23 1. Squared & Cubed Any integer that has 2 for an exponent is said to be “ .” Any integer that has 3 for an exponent is said to be “ .”

Directions: Please tell me whether each power is “squared” or “cubed”.Ex)42Ex)43Ex)82Ex)832. Zero as An Exponent Ex)When any integer has 0 as an exponent, it is ALWAYS equal to .40 Ex)120 3. One as An Exponent Ex)Any integer with 1 as an exponent is ALWAYS equal to .101 Ex)31 Ex)311 4. Any Power w/ a Base of One Ex)When the integer 1 has an exponent (any exponent), it is ALWAYS equal to .14 Ex)11 Ex)19 ExamplesDirections: Simplify each expression.Ex) 4(1 1) 2Ex) 49 – (3 2) 2Ex) 5(5 – 2) 2Ex) 70 – 3 – (4 2) 2Ex) [10 – 2 2 ] [4 2 – 10]Ex) (5 2) 2 – 2 [4 2 3]

E. Multiplication AND Division Multiply and divide in order from to .oThis does not mean that you always multiply first before you divide. You shouldmultiply or divide depending on whichever operation comes first as you work from left toright.ExamplesDirections: Simplify each expression.Ex) 7 1 x 3Ex) 3 2 x 4 1Ex) 6 2[1 (1 2)]Ex) 27 (3 x 1) 2Ex) 2 2 (4 x 3)Ex) 2[(1 2) 3 – 6] (11 – 6)F. Addition AND Subtraction Add and subtract in order from to .*This does not mean that you always add first before you subtract. You should addor subtract depending on whichever operation comes first as you work from left toright.ExamplesDirections: Simplify each expression.Ex) 3 x 5 – 8 4 6Ex) 3 2 3 4 x 4 – 2Ex) 6 2(4 1) 2

Ex) 1 (3 2) x 2 – 2 3Ex) [4(2 1)] 6 3 2G. Order of Operations Involving Fractions Whenever you see an order of operations problem involving fractions like this:(2 3) 2 32 15 31) solve everything in the numerator (or top) as if it is its own PEMDAS problem2) solve everything in the denominator (or bottom) as if its own PEMDAS problem3) and then divide out to find the answerEx)16 2430 22Ex)(3 3) 412 4 14H. Order of Operation ProblemsDirections: Simplify each expression.Ex) 4 3 x 5Ex) 10 4 2 2

Ex) 4 – 1 2 (6 3)Ex) (6 – 3) 2 4 9 – 1Ex) 13 – 4(3 2) 22(3 1) 2Ex)x3 31 12Ex) 10 2 [9 – (2 2)] 1(4)

Target Objective: Order of Operations with Positive Integers I. Order of Operations A. Vocabulary _ _ _: the order in which you perform operations in a math problem o The order of operations tells you the order in which you should go about solving problems like these: Ex) 3

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