1. How do you use Order of Operations to Evaluate Algebraic and Numeric Expressions?
Sections 1-1 & 1-2

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Vocabulary
Variable-
Algebraic Expression-
Numerical Expression-
a symbol (usually a letter) that represents a number
a mathematical phrase using at least 1 variable
a mathematical phrase involving only numbers and operational symbols.
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Order of Operations
Please-
Excuse-
My Dear-
Aunt Sally-
Parenthesis, Brackets, Fraction Bars and all Grouping Symbols go first.
Exponents and Powers next
Multiplication and Division are done next
*in order from left to right.
Addition and Subtraction are done last
*in order from left to right
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Examples
38 more than a number n
65 less than a number t
the quotient of a number p and 9
the product of a number and (-3)
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Examples
8 less than the product of a number x and 3
Twice the sum of a number x and 9
The quotient of 3 and the sum of 11 and a number x
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Examples
The table below shows how the height above the floor of a house of cards depends on the number of levels. What is a rule for the height?
Number of Levels
Height (in.) 2
(3.5·2) + 24 3
(3.5·3) + 24 4
(3.5·4) + 24 n
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Examples
What is the simplified form of each expression?
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Examles
What is the value of the expression for x = 5 and y = 2?
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