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.
Year 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.Rice costs $4.15 for 500 g. What is the price per 100 g?
Answer: $0.83
- $4.15 ÷ 5 = $0.83 per 100 g
2.Pasta costs $2.20 for 250 g. What is the price per 100 g?
Answer: $0.88
- $2.20 ÷ 2.5 = $0.88 per 100 g
3.Rice costs $4.70 for 1 kg. What is the price per 100 g?
Answer: $0.47
- $4.70 ÷ 10 = $0.47 per 100 g
4.Pasta costs $1.90 for 250 g. What is the price per 100 g?
Answer: $0.76
- $1.90 ÷ 2.5 = $0.76 per 100 g
5.Oats costs $1.60 for 500 g. What is the price per 100 g?
Answer: $0.32
- $1.60 ÷ 5 = $0.32 per 100 g
6.Rice costs $2.00 for 1 kg. What is the price per 100 g?
Answer: $0.20
- $2.00 ÷ 10 = $0.20 per 100 g
7.Rice costs $11.40 for 2 kg. What is the price per 100 g?
Answer: $0.57
- $11.40 ÷ 20 = $0.57 per 100 g
8.Oats costs $6.60 for 2 kg. What is the price per 100 g?
Answer: $0.33
- $6.60 ÷ 20 = $0.33 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.
- Celebrate what went well first, then pick one thing to work on next.