Year 8 Best Buys and Unit Prices Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 8 ratio & rates worksheet.
Year 8 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.Pasta costs $6.80 for 1 kg. What is the price per 100 g?
Answer: $0.68
- $6.80 ÷ 10 = $0.68 per 100 g
2.Rice costs $2.20 for 500 g. What is the price per 100 g?
Answer: $0.44
- $2.20 ÷ 5 = $0.44 per 100 g
3.Rice costs $14.40 for 2 kg. What is the price per 100 g?
Answer: $0.72
- $14.40 ÷ 20 = $0.72 per 100 g
4.Rice 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.Rice costs $6.10 for 1 kg. What is the price per 100 g?
Answer: $0.61
- $6.10 ÷ 10 = $0.61 per 100 g
6.Rice costs $2.70 for 500 g. What is the price per 100 g?
Answer: $0.54
- $2.70 ÷ 5 = $0.54 per 100 g
7.Oats costs $17.80 for 2 kg. What is the price per 100 g?
Answer: $0.89
- $17.80 ÷ 20 = $0.89 per 100 g
8.Pencils costs $12.00 for a pack of 24. What is the price per pencil?
Answer: $0.50
- $12.00 ÷ 24 = $0.50 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.
- Celebrate what went well first, then pick one thing to work on next.