10th Grade Increasing and Decreasing Percentages Quizzes

Start with a multiplier model: a 15% increase means multiplying by 1.15, while a 15% decrease means multiplying by 0.85. Connect the model to familiar situations such as markups and discounts, then have students use it to find final and original values.

Use a mix of direct calculations and short word problems involving prices, population changes, and investment returns. Include reverse-percentage questions, such as finding the original price before a 20% discount, because they require students to reason backward rather than simply subtract a percentage.

Students often add or subtract the percent itself instead of calculating a percent of the starting value. They may also use the final value as the denominator when finding percent change or assume that equal percentage increases and decreases cancel each other out.

Assign a quiz as a digital quiz on Wayground or download the printable PDF for paper practice. Every quiz includes a complete answer key, and teachers using print copies can scan or capture completed work for grading with the Wayground for Teachers app.

The topic extends Common Core work with ratios and proportional relationships into multiplicative percent models. Students move from finding a percent of a quantity to solving multistep problems involving discounts, markups, percent change, and unknown original values.

Give students who need support a version with larger text or wider spacing, and use reduced answer choices in digital sessions to limit cognitive load. Advanced students can work on reverse percentages or compare successive changes, such as a 10% increase followed by a 10% decrease.

Percentage change begins earlier, but Grade 10 students commonly apply it in more complex contexts involving original values, successive changes, and algebraic reasoning. This quiz collection is designed specifically for Grade 10 practice.