Year 10 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 10 ratio & rates worksheet.
Year 10 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.Pencils costs $8.64 for a pack of 24. What is the price per pencil?
Answer: $0.36
- $8.64 ÷ 24 = $0.36 per pencil
2.Pencils costs $6.48 for a pack of 24. What is the price per pencil?
Answer: $0.27
- $6.48 ÷ 24 = $0.27 per pencil
3.Oats costs $15.20 for 2 kg. What is the price per 100 g?
Answer: $0.76
- $15.20 ÷ 20 = $0.76 per 100 g
4.Oats costs $2.30 for 1 kg. What is the price per 100 g?
Answer: $0.23
- $2.30 ÷ 10 = $0.23 per 100 g
5.Juice costs $14.40 for 2 L. What is the price per 100 mL?
Answer: $0.72
- $14.40 ÷ 20 = $0.72 per 100 mL
6.Pasta costs $3.20 for 500 g. What is the price per 100 g?
Answer: $0.64
- $3.20 ÷ 5 = $0.64 per 100 g
7.Pencils costs $3.12 for a pack of 6. What is the price per pencil?
Answer: $0.52
- $3.12 ÷ 6 = $0.52 per pencil
8.Pasta costs $2.20 for 1 kg. What is the price per 100 g?
Answer: $0.22
- $2.20 ÷ 10 = $0.22 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.