Writing Expressions

Writing Expressions

TEK 6.7D

Writing Expressions

• We can translate a word problem into an algebraic expression.

• A variable is a letter used to represent and unknown number.

Open Ended

10 dollars less than the original price. What information is unknown?

Open Ended

Six feet less than the width of the room. What information is unknown?

Multiple Choice

Which expression represents the situation?

Five more than three times a number

• 5n + 3

• 3n + 5

• $3\cdot5n$

Multiple Choice

A science class gains three new students.

• n - 3

• 3 - n

• n + 3

• 3n

Multiple Choice

Write the expression.
Twelve fewer questions than were on the first test. 

• 12 + q
• q - 12
• q x 12
• q ÷ 12

Multiple Choice

Write the expression.
Three more cookies than are in the jar. 

• C x 3
• C - 3
• C + 3
• C ÷ 3