Year 6 Best Buys and Unit Prices Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 6 ratio & rates worksheet.
Success TutoringWorksheetsAnswer sheetYear 6 · Mathematics · Ratio & RatesYear 6 Best Buys and Unit Prices Worksheet — Level 2 — Practice Set 2 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your working.
1.Which is better value: oats at $8.80 for 1 kg, or at $21.00 for 2 kg?
Answer: $8.80 for 1 kg ($0.88 per 100 g)
- First: $8.80 ÷ 10 = $0.88 per 100 g
- Second: $21.00 ÷ 20 = $1.05 per 100 g
- The cheaper unit price is better value.
2.Which is better value: pencils at $2.40 for a pack of 12, or at $1.80 for a pack of 6?
Answer: $2.40 for a pack of 12 ($0.20 per pencil)
- First: $2.40 ÷ 12 = $0.20 per pencil
- Second: $1.80 ÷ 6 = $0.30 per pencil
- The cheaper unit price is better value.
3.Which is better value: oats at $2.75 for 500 g, or at $4.60 for 1 kg?
Answer: $4.60 for 1 kg ($0.46 per 100 g)
- First: $2.75 ÷ 5 = $0.55 per 100 g
- Second: $4.60 ÷ 10 = $0.46 per 100 g
- The cheaper unit price is better value.
4.Which is better value: rice at $17.40 for 2 kg, or at $3.90 for 500 g?
Answer: $3.90 for 500 g ($0.78 per 100 g)
- First: $17.40 ÷ 20 = $0.87 per 100 g
- Second: $3.90 ÷ 5 = $0.78 per 100 g
- The cheaper unit price is better value.
5.Which is better value: pencils at $18.96 for a pack of 24, or at $5.58 for a pack of 6?
Answer: $18.96 for a pack of 24 ($0.79 per pencil)
- First: $18.96 ÷ 24 = $0.79 per pencil
- Second: $5.58 ÷ 6 = $0.93 per pencil
- The cheaper unit price is better value.
6.Which is better value: rice at $2.50 for 500 g, or at $3.30 for 1 kg?
Answer: $3.30 for 1 kg ($0.33 per 100 g)
- First: $2.50 ÷ 5 = $0.50 per 100 g
- Second: $3.30 ÷ 10 = $0.33 per 100 g
- The cheaper unit price is better value.
7.Which is better value: pencils at $5.28 for a pack of 6, or at $17.76 for a pack of 24?
Answer: $17.76 for a pack of 24 ($0.74 per pencil)
- First: $5.28 ÷ 6 = $0.88 per pencil
- Second: $17.76 ÷ 24 = $0.74 per pencil
- The cheaper unit price is better value.
8.Which is better value: rice at $2.45 for 500 g, or at $5.70 for 1 kg?
Answer: $2.45 for 500 g ($0.49 per 100 g)
- First: $2.45 ÷ 5 = $0.49 per 100 g
- Second: $5.70 ÷ 10 = $0.57 per 100 g
- The cheaper unit price is better value.
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.