MathematicsFreePrintable
Unit Rate Shopping Challenge
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Unit Rate Shopping Challenge
📚 Part 1: Which is the Better Buy? (Choose one)
1. Peanut butter: 12-oz jar for $3.60 or 20-oz jar for $5.60. Which is the better value?
12-oz jar
20-oz jar
Both the same
Not enough information
2. Apples: 3 lb for $4.50 or 5 lb for $7.80. Which is the better value?
3 lb bag
5 lb bag
Both cost the same per pound
Depends on ripeness
3. Soda: 6-pack (12-oz cans) for $6.00 or 12-pack (12-oz cans) for $10.00. Which is the better value?
6-pack
12-pack
Both same price per ounce
Buy single cans instead
4. Cereal boxes: 18 oz for $4.50 or 24 oz for $5.80. Which box is cheaper per ounce?
18 oz box
24 oz box
Same price per ounce
Can't tell
✏️ Part 2: Calculate and Explain (Show work)
5. A 32-oz container of yogurt costs $5.60. Calculate the unit price in dollars per ounce. Show your work and write the unit rate.
6. Rice: 10 lb bag for $7.50 or 5 lb bag for $4.10. Which should you buy for the best value? Show your unit-rate calculations and circle your choice.
10 lb bag
5 lb bag
7. A 4-lb pack of butter costs $8.00. You have a $2.00 off coupon (applies to the pack). What is the new unit price per pound? Show work and write the unit rate.
8. In one sentence, explain the steps you use to compare two items to decide which is the better buy.
🛒 Part 3: More Unit-Rate Challenges
9. Notebooks: a 5-pack costs $7.25 or an 8-pack costs $11.20. Which pack has the lower unit price per notebook? Show both unit-rate calculations.
10. Smoothies: a 12-ounce bottle costs $3.36 or a 20-ounce bottle costs $5.40. Which bottle is the better buy? Find the price per ounce for each.
11. Pencils: a box of 24 costs $4.56 or a box of 36 costs $6.12. Determine the cost per pencil and choose the better value.
12. Trail mix: 2.5 pounds costs $9.75 or 1.75 pounds costs $7.00. Which option costs less per pound? Round to the nearest cent if needed.
13. A copy center charges $12.00 for 150 pages or $17.50 for 250 pages. Which option has the lower cost per page? Explain how you know.
14. Laundry detergent: a bottle handles 64 loads and costs $11.52, while a larger bottle handles 90 loads and costs $15.30. Find each cost per load and select the better buy.
15. Movie tickets are sold in groups of 3 for $18.75 or groups of 5 for $30.00. Which group has the lower price per ticket? Show your calculations.
16. Lemonade: 2 liters cost $3.18 or 3 liters cost $4.41. Calculate the price per liter for each and identify the better buy.
✅ Complete Answer Key
1. 12-oz jar: $3.60 ÷ 12 = $0.30 per ounce. 20-oz jar: $5.60 ÷ 20 = $0.28 per ounce. The 20-oz jar is the better value.
2. 3-lb bag: $4.50 ÷ 3 = $1.50 per pound. 5-lb bag: $7.80 ÷ 5 = $1.56 per pound. The 3-lb bag is the better value.
3. 6-pack: 6 cans × 12 ounces = 72 ounces; $6.00 ÷ 72 ≈ $0.083 per ounce. 12-pack: 12 cans × 12 ounces = 144 ounces; $10.00 ÷ 144 ≈ $0.069 per ounce. The 12-pack is the better value.
4. 18-oz box: $4.50 ÷ 18 = $0.25 per ounce. 24-oz box: $5.80 ÷ 24 ≈ $0.242 per ounce. The 24-oz box is cheaper per ounce.
5. $5.60 ÷ 32 ounces = $0.175 per ounce, or about $0.18 per ounce.
6. 10-lb bag: $7.50 ÷ 10 = $0.75 per pound. 5-lb bag: $4.10 ÷ 5 = $0.82 per pound. The 10-lb bag is the better value.
7. Sale price: $8.00 − $2.00 = $6.00. New unit price: $6.00 ÷ 4 pounds = $1.50 per pound.
8. Divide the price of each item by its quantity, compare the unit rates, and choose the item with the lower unit rate.
9. 5-pack: $7.25 ÷ 5 = $1.45 per notebook. 8-pack: $11.20 ÷ 8 = $1.40 per notebook. The 8-pack is the better buy.
10. 12-ounce bottle: $3.36 ÷ 12 = $0.28 per ounce. 20-ounce bottle: $5.40 ÷ 20 = $0.27 per ounce. The 20-ounce bottle is the better buy.
11. 24-pack: $4.56 ÷ 24 = $0.19 per pencil. 36-pack: $6.12 ÷ 36 = $0.17 per pencil. The 36-pack is the better buy.
12. 2.5-pound option: $9.75 ÷ 2.5 = $3.90 per pound. 1.75-pound option: $7.00 ÷ 1.75 = $4.00 per pound. The 2.5-pound option is the better buy.
13. 150-page option: $12.00 ÷ 150 = $0.08 per page. 250-page option: $17.50 ÷ 250 = $0.07 per page. The 250-page option is the better buy because it has the lower cost per page.
14. 64-load bottle: $11.52 ÷ 64 = $0.18 per load. 90-load bottle: $15.30 ÷ 90 = $0.17 per load. The 90-load bottle is the better buy.
15. Group of 3: $18.75 ÷ 3 = $6.25 per ticket. Group of 5: $30.00 ÷ 5 = $6.00 per ticket. The group of 5 is the better buy.
16. 2-liter option: $3.18 ÷ 2 = $1.59 per liter. 3-liter option: $4.41 ÷ 3 = $1.47 per liter. The 3-liter option is the better buy.
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