Mathematics
Grade 8
15 min
Unit rates
Unit rates
What you'll learn
- Identify the key ratios presented in a word problem with at least 80% accuracy.
- Solve word problems by setting up equivalent ratios using cross-multiplication or scaling, achieving a correct answer in at least 3 out of 4 problems.
- Explain which ratio is greater or smaller in a word problem context, justifying the answer with clear mathematical reasoning in writing.
- Apply ratio and proportion reasoning to solve real-world problems involving comparing quantities, demonstrating understanding by correctly answering application questions.
Tutorial Preview
1
$12 for 4 muffins. What is the cost per muffin?
2
A train travels 180 miles in 3 hours. What is its speed?
3
Deal A: 2 shirts for $20. Deal B: 3 shirts for $24. Which is the better deal?
Sample Practice Questions
Easy
If 5 sodas cost $10, what is the cost per soda?
0.$1
1.$2
2.$3
3.$5
Easy
A pack of 4 pencils costs $8. What is the cost per pencil?
0.$1
1.$2
2.$4
3.$8
Easy
A cyclist travels 20 miles in 2 hours. What is her average speed in miles per hour?
0.5 mph
1.10 mph
2.15 mph
3.20 mph
Want to practice and check your answers?
Sign up to access all questions with instant feedback, explanations, and progress tracking.
Start Practicing FreeMore from Ratios, rates, and proportions
Mathematics for other grades
Frequently asked questions
What grade level is "Unit rates"?
Unit rates is a Grade 8 Mathematics lesson on ExcelOS.
What will I learn in Unit rates?
You'll be able to: Identify the key ratios presented in a word problem with at least 80% accuracy; Solve word problems by setting up equivalent ratios using cross-multiplication or scaling, achieving a correct answer in at least 3 out of 4….
Is "Unit rates" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Unit rates?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.