pdf Percent Change - Writing Expressions

This worksheet focuses on writing algebraic expressions to model real-world percent situations involving mark-up, mark-down, sales tax, and discounts. Students translate contextual scenarios into algebraic expressions using variables and percent multipliers, emphasizing structure and interpretation rather than immediate computation. The problems progress from single-step situations to combined discount-and-tax scenarios, reinforcing how percentages compound in practical contexts.

Students write expressions that represent final prices after increases or decreases, such as modeling a sales tax with a multiplier or applying a discount before tax. For example, a sales-tax situation can be represented as \(1.08t\), while a discount scenario can be written using a multiplier like \(0.85c\). Combined cases require careful sequencing, helping students reason about order and structure when multiple percent changes are involved.

Skills Assessed

• Writing algebraic expressions involving percents

• Modeling mark-up, mark-down, tax, and discount situations

• Using percent multipliers to represent increases and decreases

• Interpreting real-world contexts algebraically

Details

• Practice worksheet format

• Real-world financial contexts

• Includes single-step and multi-step percent scenarios

ID# 0858