Year 8 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 3 — 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 3 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your working.
1.Pencils costs $18.72 for a pack of 24. What is the price per pencil?
Answer: $0.78
- $18.72 ÷ 24 = $0.78 per pencil
2.Juice costs $6.20 for 1 L. What is the price per 100 mL?
Answer: $0.62
- $6.20 ÷ 10 = $0.62 per 100 mL
3.Pencils costs $4.74 for a pack of 6. What is the price per pencil?
Answer: $0.79
- $4.74 ÷ 6 = $0.79 per pencil
4.Pasta costs $1.25 for 250 g. What is the price per 100 g?
Answer: $0.50
- $1.25 ÷ 2.5 = $0.50 per 100 g
5.Pencils costs $1.38 for a pack of 6. What is the price per pencil?
Answer: $0.23
- $1.38 ÷ 6 = $0.23 per pencil
6.Rice costs $7.50 for 1 kg. What is the price per 100 g?
Answer: $0.75
- $7.50 ÷ 10 = $0.75 per 100 g
7.Rice costs $1.35 for 500 g. What is the price per 100 g?
Answer: $0.27
- $1.35 ÷ 5 = $0.27 per 100 g
8.Rice costs $2.45 for 500 g. What is the price per 100 g?
Answer: $0.49
- $2.45 ÷ 5 = $0.49 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.
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