Year 9 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 9 ratio & rates worksheet.
Year 9 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 4 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your working.
1.Pencils costs $6.96 for a pack of 24. What is the price per pencil?
Answer: $0.29
- $6.96 ÷ 24 = $0.29 per pencil
2.Juice costs $17.60 for 2 L. What is the price per 100 mL?
Answer: $0.88
- $17.60 ÷ 20 = $0.88 per 100 mL
3.Juice costs $4.40 for 2 L. What is the price per 100 mL?
Answer: $0.22
- $4.40 ÷ 20 = $0.22 per 100 mL
4.Pencils costs $14.16 for a pack of 24. What is the price per pencil?
Answer: $0.59
- $14.16 ÷ 24 = $0.59 per pencil
5.Pasta costs $8.30 for 1 kg. What is the price per 100 g?
Answer: $0.83
- $8.30 ÷ 10 = $0.83 per 100 g
6.Rice costs $4.20 for 500 g. What is the price per 100 g?
Answer: $0.84
- $4.20 ÷ 5 = $0.84 per 100 g
7.Oats costs $6.60 for 1 kg. What is the price per 100 g?
Answer: $0.66
- $6.60 ÷ 10 = $0.66 per 100 g
8.Pasta costs $0.85 for 250 g. What is the price per 100 g?
Answer: $0.34
- $0.85 ÷ 2.5 = $0.34 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.