Year 10 Best Buys and Unit Prices Worksheet — Level 1 — Practice Set 4 — 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 4 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your working.
1.Rice costs $1.25 for 500 g. What is the price per 100 g?
Answer: $0.25
- $1.25 ÷ 5 = $0.25 per 100 g
2.Rice costs $16.60 for 2 kg. What is the price per 100 g?
Answer: $0.83
- $16.60 ÷ 20 = $0.83 per 100 g
3.Pasta costs $6.80 for 1 kg. What is the price per 100 g?
Answer: $0.68
- $6.80 ÷ 10 = $0.68 per 100 g
4.Pencils costs $3.00 for a pack of 6. What is the price per pencil?
Answer: $0.50
- $3.00 ÷ 6 = $0.50 per pencil
5.Juice costs $0.90 for 250 mL. What is the price per 100 mL?
Answer: $0.36
- $0.90 ÷ 2.5 = $0.36 per 100 mL
6.Pasta costs $0.90 for 250 g. What is the price per 100 g?
Answer: $0.36
- $0.90 ÷ 2.5 = $0.36 per 100 g
7.Oats costs $6.00 for 1 kg. What is the price per 100 g?
Answer: $0.60
- $6.00 ÷ 10 = $0.60 per 100 g
8.Rice costs $2.80 for 500 g. What is the price per 100 g?
Answer: $0.56
- $2.80 ÷ 5 = $0.56 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.