Year 7 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 7 ratio & rates worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Ratio & RatesYear 7 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 4 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your working.
1.Pencils costs $9.48 for a pack of 12. What is the price per pencil?
Answer: $0.79
- $9.48 ÷ 12 = $0.79 per pencil
2.Pencils costs $2.10 for a pack of 6. What is the price per pencil?
Answer: $0.35
- $2.10 ÷ 6 = $0.35 per pencil
3.Oats costs $6.30 for 1 kg. What is the price per 100 g?
Answer: $0.63
- $6.30 ÷ 10 = $0.63 per 100 g
4.Pasta costs $3.25 for 500 g. What is the price per 100 g?
Answer: $0.65
- $3.25 ÷ 5 = $0.65 per 100 g
5.Rice costs $4.40 for 500 g. What is the price per 100 g?
Answer: $0.88
- $4.40 ÷ 5 = $0.88 per 100 g
6.Rice costs $17.40 for 2 kg. What is the price per 100 g?
Answer: $0.87
- $17.40 ÷ 20 = $0.87 per 100 g
7.Rice costs $8.00 for 1 kg. What is the price per 100 g?
Answer: $0.80
- $8.00 ÷ 10 = $0.80 per 100 g
8.Juice costs $10.20 for 2 L. What is the price per 100 mL?
Answer: $0.51
- $10.20 ÷ 20 = $0.51 per 100 mL
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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