9th Grade Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 9th Grade ratios & rates worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Ratio & Rates9th Grade Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 3 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your work.
1.Rice costs $3.60 for 500 g. What is the price per 100 g?
Answer: $0.72
- $3.60 ÷ 5 = $0.72 per 100 g
2.Rice costs $6.20 for 2 kg. What is the price per 100 g?
Answer: $0.31
- $6.20 ÷ 20 = $0.31 per 100 g
3.Pencils costs $7.68 for a pack of 24. What is the price per pencil?
Answer: $0.32
- $7.68 ÷ 24 = $0.32 per pencil
4.Pencils costs $9.12 for a pack of 24. What is the price per pencil?
Answer: $0.38
- $9.12 ÷ 24 = $0.38 per pencil
5.Pencils costs $2.22 for a pack of 6. What is the price per pencil?
Answer: $0.37
- $2.22 ÷ 6 = $0.37 per pencil
6.Rice costs $1.20 for 500 g. What is the price per 100 g?
Answer: $0.24
- $1.20 ÷ 5 = $0.24 per 100 g
7.Pencils costs $8.88 for a pack of 24. What is the price per pencil?
Answer: $0.37
- $8.88 ÷ 24 = $0.37 per pencil
8.Rice costs $4.00 for 2 kg. What is the price per 100 g?
Answer: $0.20
- $4.00 ÷ 20 = $0.20 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.