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.Oats costs $2.30 for 500 g. What is the price per 100 g?
Answer: $0.46
- $2.30 ÷ 5 = $0.46 per 100 g
2.Rice costs $3.85 for 500 g. What is the price per 100 g?
Answer: $0.77
- $3.85 ÷ 5 = $0.77 per 100 g
3.Oats costs $3.90 for 500 g. What is the price per 100 g?
Answer: $0.78
- $3.90 ÷ 5 = $0.78 per 100 g
4.Juice costs $4.60 for 2 L. What is the price per 100 mL?
Answer: $0.23
- $4.60 ÷ 20 = $0.23 per 100 mL
5.Pencils costs $5.76 for a pack of 24. What is the price per pencil?
Answer: $0.24
- $5.76 ÷ 24 = $0.24 per pencil
6.Pencils costs $2.40 for a pack of 6. What is the price per pencil?
Answer: $0.40
- $2.40 ÷ 6 = $0.40 per pencil
7.Pasta costs $2.50 for 1 kg. What is the price per 100 g?
Answer: $0.25
- $2.50 ÷ 10 = $0.25 per 100 g
8.Juice costs $6.00 for 1 L. What is the price per 100 mL?
Answer: $0.60
- $6.00 ÷ 10 = $0.60 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.
- Celebrate what went well first, then pick one thing to work on next.