6th Grade Best Buys and Unit Prices Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 6th Grade ratios & rates worksheet.
6th Grade 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 work.
1.Which is better value: oats at $7.60 for 1 kg, or at $4.15 for 500 g?
Answer: $7.60 for 1 kg ($0.76 per 100 g)
- First: $7.60 ÷ 10 = $0.76 per 100 g
- Second: $4.15 ÷ 5 = $0.83 per 100 g
- The cheaper unit price is better value.
2.Which is better value: pasta at $8.90 for 1 kg, or at $4.95 for 500 g?
Answer: $8.90 for 1 kg ($0.89 per 100 g)
- First: $8.90 ÷ 10 = $0.89 per 100 g
- Second: $4.95 ÷ 5 = $0.99 per 100 g
- The cheaper unit price is better value.
3.Which is better value: pencils at $5.16 for a pack of 12, or at $14.88 for a pack of 24?
Answer: $5.16 for a pack of 12 ($0.43 per pencil)
- First: $5.16 ÷ 12 = $0.43 per pencil
- Second: $14.88 ÷ 24 = $0.62 per pencil
- The cheaper unit price is better value.
4.Which is better value: juice at $4.90 for 1 L, or at $5.80 for 2 L?
Answer: $5.80 for 2 L ($0.29 per 100 mL)
- First: $4.90 ÷ 10 = $0.49 per 100 mL
- Second: $5.80 ÷ 20 = $0.29 per 100 mL
- The cheaper unit price is better value.
5.Which is better value: oats at $5.00 for 2 kg, or at $2.20 for 500 g?
Answer: $5.00 for 2 kg ($0.25 per 100 g)
- First: $5.00 ÷ 20 = $0.25 per 100 g
- Second: $2.20 ÷ 5 = $0.44 per 100 g
- The cheaper unit price is better value.
6.Which is better value: pencils at $3.00 for a pack of 6, or at $4.44 for a pack of 12?
Answer: $4.44 for a pack of 12 ($0.37 per pencil)
- First: $3.00 ÷ 6 = $0.50 per pencil
- Second: $4.44 ÷ 12 = $0.37 per pencil
- The cheaper unit price is better value.
7.Which is better value: rice at $6.50 for 1 kg, or at $14.40 for 2 kg?
Answer: $6.50 for 1 kg ($0.65 per 100 g)
- First: $6.50 ÷ 10 = $0.65 per 100 g
- Second: $14.40 ÷ 20 = $0.72 per 100 g
- The cheaper unit price is better value.
8.Which is better value: pasta at $3.85 for 500 g, or at $8.30 for 1 kg?
Answer: $3.85 for 500 g ($0.77 per 100 g)
- First: $3.85 ÷ 5 = $0.77 per 100 g
- Second: $8.30 ÷ 10 = $0.83 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.