1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
9/1: Warm Up
What is the algebraic expression for each word phrase?
1). 16 more than a number n.
2). 22 less than a number n.
3). 3 times a number n.
4). The quotient of a number n and 12.
5). 11 more than twice a number x.
6). 2 less than the quotient of 5 and a number x.
7). The product of 4 and the sum of a number x and 8.
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
1.2: Order of Operations & Evaluating Expressions
September 01, 2015
9/1
A power has two parts, a base and an exponent. The exponent tells
how many times to use the base as a factor.
Ex.
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
Ex 1).
a) 105
b) 23
c) (­3)2
d) (0.2)4
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
Ex 2). Simplify
a)
b)
c)
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
Ex 2). Simplify
d)
e)
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
To evaluate means to replace each variable with the given values and
then simplify.
Ex 3). Evaluate (for x = 3 and y = 4)
a)
b)
c)
d)
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
Ex 4). What is the expression for the spending money you have left
after depositing 1/4 of your wages into your savings account?
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1.2 ­ Order of Operations and Evaluating Expressions.notebook
September 01, 2015
Homework:
pg. 13 #10 ­ 34(e), 38 ­ 52(e)
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