Year 7 Best Buys and Unit Prices Worksheet — Level 1 — 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 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your working.
1.Juice costs $13.60 for 2 L. What is the price per 100 mL?
Answer: $0.68
- $13.60 ÷ 20 = $0.68 per 100 mL
2.Rice costs $3.15 for 500 g. What is the price per 100 g?
Answer: $0.63
- $3.15 ÷ 5 = $0.63 per 100 g
3.Pasta costs $3.60 for 1 kg. What is the price per 100 g?
Answer: $0.36
- $3.60 ÷ 10 = $0.36 per 100 g
4.Pasta costs $8.80 for 1 kg. What is the price per 100 g?
Answer: $0.88
- $8.80 ÷ 10 = $0.88 per 100 g
5.Pasta costs $2.70 for 1 kg. What is the price per 100 g?
Answer: $0.27
- $2.70 ÷ 10 = $0.27 per 100 g
6.Pasta costs $2.25 for 250 g. What is the price per 100 g?
Answer: $0.90
- $2.25 ÷ 2.5 = $0.90 per 100 g
7.Pencils costs $7.92 for a pack of 24. What is the price per pencil?
Answer: $0.33
- $7.92 ÷ 24 = $0.33 per pencil
8.Oats costs $5.20 for 1 kg. What is the price per 100 g?
Answer: $0.52
- $5.20 ÷ 10 = $0.52 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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