Grade 8 Proportional Reasoning Worksheet
This worksheet helps 8th-grade students practice proportional reasoning through various question types including ratios, rates, scale drawings, and percentages.
Includes
Standards
Topics
Proportional Reasoning
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Read each question carefully and answer to the best of your ability. Show your work where necessary.
1. A recipe calls for 2 cups of sugar for every 3 cups of flour. If you use 9 cups of flour, how much sugar do you need?
4 cups
6 cups
8 cups
12 cups
2. A car travels 150 miles in 3 hours. At this rate, how far will it travel in 5 hours?
200 miles
225 miles
250 miles
300 miles
3. If a map has a scale of 1 inch = 20 miles, then 3 inches on the map represents miles in real life.
4. To find the unit rate, you divide the by the .
5. Explain what a proportion is and provide an example.
6. A scale model of a building is 10 cm tall. If the actual building is 50 meters tall, what is the scale of the model?
7. A ratio of 1:2 is equivalent to 50%.
True
False
8. If two quantities are proportional, their graph will always be a straight line passing through the origin.
True
False
9. Plot the points (1, 2), (2, 4), (3, 6) on the graph below. Is this a proportional relationship? Explain why or why not.
Match each term with its definition.
10. Ratio
a. A comparison of two quantities by division.
11. Unit Rate
b. A rate with a denominator of 1.
12. Proportion
c. An equation stating that two ratios are equal.