Year 8 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 8 ratio & rates worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Ratio & RatesYear 8 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 working.
1.Pasta costs $1.40 for 500 g. What is the price per 100 g?
Answer: $0.28
- $1.40 ÷ 5 = $0.28 per 100 g
2.Oats costs $6.40 for 1 kg. What is the price per 100 g?
Answer: $0.64
- $6.40 ÷ 10 = $0.64 per 100 g
3.Rice costs $2.50 for 1 kg. What is the price per 100 g?
Answer: $0.25
- $2.50 ÷ 10 = $0.25 per 100 g
4.Oats costs $3.45 for 500 g. What is the price per 100 g?
Answer: $0.69
- $3.45 ÷ 5 = $0.69 per 100 g
5.Pasta costs $6.30 for 1 kg. What is the price per 100 g?
Answer: $0.63
- $6.30 ÷ 10 = $0.63 per 100 g
6.Rice costs $3.75 for 500 g. What is the price per 100 g?
Answer: $0.75
- $3.75 ÷ 5 = $0.75 per 100 g
7.Pasta costs $7.20 for 1 kg. What is the price per 100 g?
Answer: $0.72
- $7.20 ÷ 10 = $0.72 per 100 g
8.Pencils costs $2.16 for a pack of 6. What is the price per pencil?
Answer: $0.36
- $2.16 ÷ 6 = $0.36 per pencil
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.
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