Solving Ratio and Percent Problems

Free to teach as-is — the teacher guide, student handout, and slides are included.

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Objective

I can solve multi-step problems involving percent increase and percent decrease in real-life situations.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Calculate the percent decrease if a store's price drops from $80 to $60. Show your work.

2

A population of a town decreased from 1,200 to 900 over a year. What is the percent decrease in the population? Explain your calculation.

Part 3 of 3

Exit ticket

Quick comprehension check

A store originally priced a jacket at $90, but now it is on sale for $72. Calculate the percent decrease in the price of the jacket and show your work. A population of a town increased from 800 to 1,200 over a year. Calculate the percent increase in the population and explain your calculation.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

  • Slides

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