6th Grade Best Buys and Unit Prices Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Find the price for the same amount of each (the unit price), then compare. Show your work.
1.Which is better value: rice at $4.30 for 1 kg, or at $2.90 for 500 g?
Answer: $4.30 for 1 kg ($0.43 per 100 g)
- First: $4.30 ÷ 10 = $0.43 per 100 g
- Second: $2.90 ÷ 5 = $0.58 per 100 g
- The cheaper unit price is better value.
2.Which is better value: oats at $3.15 for 500 g, or at $8.80 for 2 kg?
Answer: $8.80 for 2 kg ($0.44 per 100 g)
- First: $3.15 ÷ 5 = $0.63 per 100 g
- Second: $8.80 ÷ 20 = $0.44 per 100 g
- The cheaper unit price is better value.
3.Which is better value: juice at $7.80 for 2 L, or at $2.30 for 1 L?
Answer: $2.30 for 1 L ($0.23 per 100 mL)
- First: $7.80 ÷ 20 = $0.39 per 100 mL
- Second: $2.30 ÷ 10 = $0.23 per 100 mL
- The cheaper unit price is better value.
4.Which is better value: rice at $2.20 for 500 g, or at $7.60 for 2 kg?
Answer: $7.60 for 2 kg ($0.38 per 100 g)
- First: $2.20 ÷ 5 = $0.44 per 100 g
- Second: $7.60 ÷ 20 = $0.38 per 100 g
- The cheaper unit price is better value.
5.Which is better value: pencils at $2.28 for a pack of 6, or at $7.92 for a pack of 24?
Answer: $7.92 for a pack of 24 ($0.33 per pencil)
- First: $2.28 ÷ 6 = $0.38 per pencil
- Second: $7.92 ÷ 24 = $0.33 per pencil
- The cheaper unit price is better value.
6.Which is better value: juice at $7.80 for 1 L, or at $16.80 for 2 L?
Answer: $7.80 for 1 L ($0.78 per 100 mL)
- First: $7.80 ÷ 10 = $0.78 per 100 mL
- Second: $16.80 ÷ 20 = $0.84 per 100 mL
- The cheaper unit price is better value.
7.Which is better value: juice at $12.40 for 2 L, or at $4.40 for 1 L?
Answer: $4.40 for 1 L ($0.44 per 100 mL)
- First: $12.40 ÷ 20 = $0.62 per 100 mL
- Second: $4.40 ÷ 10 = $0.44 per 100 mL
- The cheaper unit price is better value.
8.Which is better value: oats at $2.25 for 500 g, or at $5.10 for 1 kg?
Answer: $2.25 for 500 g ($0.45 per 100 g)
- First: $2.25 ÷ 5 = $0.45 per 100 g
- Second: $5.10 ÷ 10 = $0.51 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.