8th Grade Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 8th Grade ratios & rates worksheet.
8th Grade Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 2 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your work.
1.Juice costs $7.00 for 1 L. What is the price per 100 mL?
Answer: $0.70
- $7.00 ÷ 10 = $0.70 per 100 mL
2.Rice costs $2.90 for 1 kg. What is the price per 100 g?
Answer: $0.29
- $2.90 ÷ 10 = $0.29 per 100 g
3.Pencils costs $10.80 for a pack of 12. What is the price per pencil?
Answer: $0.90
- $10.80 ÷ 12 = $0.90 per pencil
4.Pencils costs $9.00 for a pack of 12. What is the price per pencil?
Answer: $0.75
- $9.00 ÷ 12 = $0.75 per pencil
5.Oats costs $6.20 for 1 kg. What is the price per 100 g?
Answer: $0.62
- $6.20 ÷ 10 = $0.62 per 100 g
6.Oats costs $2.40 for 1 kg. What is the price per 100 g?
Answer: $0.24
- $2.40 ÷ 10 = $0.24 per 100 g
7.Pasta costs $2.05 for 250 g. What is the price per 100 g?
Answer: $0.82
- $2.05 ÷ 2.5 = $0.82 per 100 g
8.Pasta costs $5.70 for 1 kg. What is the price per 100 g?
Answer: $0.57
- $5.70 ÷ 10 = $0.57 per 100 g
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.