Page 14 - Math Course 1 (Book 2)

The Language of Algebra

Mo. 7

Lesson 2 exponent

n
in the expression x the variable n is called the
exponent.
KEY CONCEPTS: base
1. Write mathematical expressions for verbal
n
expressions. in the expression x the variable x is called the
2. Write verbal expressions for mathematical base.
expressions.
power
n
The amount an expression like x is raised is
MO. 7 - L2a called a power.

Write Mathematical Expressions 2 Exponent (or index,
for Verbal Expressions Base 8 or power)

Vocabulary A-Z Remember to read your instructions!

Let us learn some vocabulary Write an expression Example
Your answer will be 14 + 1
an expression 26 ÷ 2

variables

are symbols used to represent unspecif ed Evaluate an expression Example
numbers or values. Your answer will be a 15
value 13
In the algebraic expression 4s,
the letter s is called a variable. Sometimes it will ask you to write and then evaluate
so you must do both!

algebraic expression
consists of one or more numbers and variables
along with one or more arithmetic operations. Let’s Begin

5x 3x – 7

m x 5n 3ab ÷ 5cd Write Algebraic Expression

factors Examples
In each expression, the quantities being multiplied
are called factors.
Write an algebraic expression for 5 less than a
product number c.

In each expression, the result of the multiplied The words less than suggest subtraction.
factors is called the product.
a number c less f ve
3 x 1 =3

c – 5

Answer Thus, the algebraic expression is
c – 5.
The factors are 3 and 1. The product is 3

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