Success TutoringWorksheets

Year 7 Best Buys and Unit Prices Worksheet — Level 2 — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 7 ratio & rates worksheet.

Download answers PDFPrint answersBack to worksheet
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Ratio & Rates

Year 7 Best Buys and Unit Prices Worksheet — Level 2 — Practice Set 3 — Answers

Find the price for the same amount of each (the unit price), then compare. Show your working.

1.Which is better value: rice at $12.60 for 2 kg, or at $7.40 for 1 kg?

Answer: $12.60 for 2 kg ($0.63 per 100 g)

  1. First: $12.60 ÷ 20 = $0.63 per 100 g
  2. Second: $7.40 ÷ 10 = $0.74 per 100 g
  3. The cheaper unit price is better value.
2.Which is better value: pencils at $2.88 for a pack of 6, or at $9.36 for a pack of 24?

Answer: $9.36 for a pack of 24 ($0.39 per pencil)

  1. First: $2.88 ÷ 6 = $0.48 per pencil
  2. Second: $9.36 ÷ 24 = $0.39 per pencil
  3. The cheaper unit price is better value.
3.Which is better value: pasta at $6.40 for 1 kg, or at $2.70 for 500 g?

Answer: $2.70 for 500 g ($0.54 per 100 g)

  1. First: $6.40 ÷ 10 = $0.64 per 100 g
  2. Second: $2.70 ÷ 5 = $0.54 per 100 g
  3. The cheaper unit price is better value.
4.Which is better value: rice at $6.80 for 2 kg, or at $1.80 for 1 kg?

Answer: $1.80 for 1 kg ($0.18 per 100 g)

  1. First: $6.80 ÷ 20 = $0.34 per 100 g
  2. Second: $1.80 ÷ 10 = $0.18 per 100 g
  3. The cheaper unit price is better value.
5.Which is better value: pencils at $5.28 for a pack of 24, or at $3.96 for a pack of 12?

Answer: $5.28 for a pack of 24 ($0.22 per pencil)

  1. First: $5.28 ÷ 24 = $0.22 per pencil
  2. Second: $3.96 ÷ 12 = $0.33 per pencil
  3. The cheaper unit price is better value.
6.Which is better value: pasta at $5.20 for 1 kg, or at $1.50 for 250 g?

Answer: $5.20 for 1 kg ($0.52 per 100 g)

  1. First: $5.20 ÷ 10 = $0.52 per 100 g
  2. Second: $1.50 ÷ 2.5 = $0.60 per 100 g
  3. The cheaper unit price is better value.
7.Which is better value: oats at $2.40 for 1 kg, or at $1.60 for 2 kg?

Answer: $1.60 for 2 kg ($0.08 per 100 g)

  1. First: $2.40 ÷ 10 = $0.24 per 100 g
  2. Second: $1.60 ÷ 20 = $0.08 per 100 g
  3. The cheaper unit price is better value.
8.Which is better value: pencils at $20.16 for a pack of 24, or at $8.64 for a pack of 12?

Answer: $8.64 for a pack of 12 ($0.72 per pencil)

  1. First: $20.16 ÷ 24 = $0.84 per pencil
  2. Second: $8.64 ÷ 12 = $0.72 per pencil
  3. The cheaper unit price is better value.
Free worksheets at worksheets.successtutoring.com · © Success Tutoring · Free for personal and classroom use

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.

Great work. Here's what to try next: