Page 98 - Math Course 1 (Book 1)

Expressions Containing Variables

Mo. 3

Lesson 2

Def ning a Variable
KEY CONCEPTS:
1.Translate verbal phrases into algebraic is to choose a variable and the quantity for that
expressions. variable to represent.
2. Evaluate expressions containing variables.
Words four times a number decreased by 6

MO. 3 - L2a
Variables Let n represent the number
Translating Verbal Phrases into
Algebraic Expressions
Expression 4n – 6

Vocabulary A-Z

Let us learn some vocabulary Words twelve points more than the Falcons
scored.

Variables Let p represent the points the
Falcons scored.
Algebra
is a branch of mathematics dealing with symbols.
Expression p + 12

Let’s Begin

Algebraic Expression Translate Verbal Phrases

is an expression containing sums and or products of into Expressions
variables and numbers.
x + 2 Examples

The letter x is most
often used as a Translate the phrase 35 more than the number of
variable. tickets sold into an algebraic expression.
4h - 5 4h means 4 x h Words 35 more than the number of tickets

mn mn means m x h. sold.

Let t represent the number of tickets
y Variables sold. the number of
y
means y 3. 35 more than tickets sold.
÷
3 3
Expression 35 + t

Answer The expression is 35 + t.

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