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.Juice costs $2.00 for 250 mL. What is the price per 100 mL?
Answer: $0.80
- $2.00 ÷ 2.5 = $0.80 per 100 mL
2.Rice costs $16.80 for 2 kg. What is the price per 100 g?
Answer: $0.84
- $16.80 ÷ 20 = $0.84 per 100 g
3.Juice costs $14.00 for 2 L. What is the price per 100 mL?
Answer: $0.70
- $14.00 ÷ 20 = $0.70 per 100 mL
4.Pencils costs $8.40 for a pack of 24. What is the price per pencil?
Answer: $0.35
- $8.40 ÷ 24 = $0.35 per pencil
5.Pencils costs $3.48 for a pack of 6. What is the price per pencil?
Answer: $0.58
- $3.48 ÷ 6 = $0.58 per pencil
6.Oats costs $1.85 for 500 g. What is the price per 100 g?
Answer: $0.37
- $1.85 ÷ 5 = $0.37 per 100 g
7.Oats costs $3.00 for 1 kg. What is the price per 100 g?
Answer: $0.30
- $3.00 ÷ 10 = $0.30 per 100 g
8.Juice costs $1.85 for 250 mL. What is the price per 100 mL?
Answer: $0.74
- $1.85 ÷ 2.5 = $0.74 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.