Writing Algebraic Expressions

10.1 Writing Expressions

Modeling and Writing Expressions

An algebraic expression that contains one or more variables and may also contain operation symbols such as + or - .

A variable is a letter or symbol used to represent an unknown or unspecified number. The value of the variable will not always be the same.

A constant is a specific number whose value does not change.

Example:

w + n

150 + y

Writing multiplication and division

Describing expressions with words

​operation	​addition	​subtraction	​multiplication	​division
​words	​added to plus sum more than	​ ​subtracted from minus difference less than	​times multiplied by product groups of	​divided by divided into quotient

Match

Match the following operations with the written expression words

• addition

• subtraction

• multiplication

• division

more than

difference

groups of

quotient

• more than

• difference

• groups of

• quotient

Write each phrase as an algebraic expression

n times 7

4 minus y

13 added to x

Math Response

Write each phrase as an algebraic expression.

The sum of 7 and x

Type answer here

Correct Answer: 7+x

Deg^°

Rad

Math Response

Write each phrase as an algebraic expression.

The quotient of z and 3

Type answer here

Correct Answer: \frac{z}{3}

Deg^°

Rad

Write a phrase for each expression

Multiple Choice

Write a phrase for each algebraic expression.

11x

• the quotient of 11 and x

• the product of 11 and x

• the sum of 11 and x

• 11 is less than x

Multiple Choice

Write a phrase for each algebraic expression.

8 - y

• the difference between 8 and y

• the sum of 8 and y

• 8 times y

• 8 divided into y

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