8th Grade Percentage of an Amount Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 8th Grade percentages worksheet.
8th Grade Percentage of an Amount Worksheet — Level 3 — Practice Set 2 — Answers
Show your work.
1.Grace's weekly pay of $290 increases by 4%. What is the new weekly pay?
Answer: $301.60
- Increase: 4% of 290 = 11.6
- 290 + 11.6 = 301.60
- (Or: 104% × 290 = 301.60)
2.A jacket costs $450. It is reduced by 12% in a sale. What is the sale price?
Answer: $396.00
- Discount: 12% of 450 = 54
- 450 − 54 = 396.00
- (Or: 88% × 450 = 396.00)
3.Aisha's weekly pay of $420 increases by 85%. What is the new weekly pay?
Answer: $777.00
- Increase: 85% of 420 = 357
- 420 + 357 = 777.00
- (Or: 185% × 420 = 777.00)
4.Find 22% of 520.
Answer: 114.4
- 22% = 0.22
- 0.22 × 520 = 114.4
5.A jacket costs $80. It is reduced by 12% in a sale. What is the sale price?
Answer: $70.40
- Discount: 12% of 80 = 9.6
- 80 − 9.6 = 70.40
- (Or: 88% × 80 = 70.40)
6.Find 85% of 210.
Answer: 178.5
- 85% = 0.85
- 0.85 × 210 = 178.5
7.A jacket costs $210. It is reduced by 18% in a sale. What is the sale price?
Answer: $172.20
- Discount: 18% of 210 = 37.8
- 210 − 37.8 = 172.20
- (Or: 82% × 210 = 172.20)
8.A jacket costs $480. It is reduced by 45% in a sale. What is the sale price?
Answer: $264.00
- Discount: 45% of 480 = 216
- 480 − 216 = 264.00
- (Or: 55% × 480 = 264.00)
9.A jacket costs $100. It is reduced by 22% in a sale. What is the sale price?
Answer: $78.00
- Discount: 22% of 100 = 22
- 100 − 22 = 78.00
- (Or: 78% × 100 = 78.00)
10.A jacket costs $570. It is reduced by 12% in a sale. What is the sale price?
Answer: $501.60
- Discount: 12% of 570 = 68.4
- 570 − 68.4 = 501.60
- (Or: 88% × 570 = 501.60)
11.Find 12% of 500.
Answer: 60
- 12% = 0.12
- 0.12 × 500 = 60
12.Zoe's weekly pay of $410 increases by 7%. What is the new weekly pay?
Answer: $438.70
- Increase: 7% of 410 = 28.7
- 410 + 28.7 = 438.70
- (Or: 107% × 410 = 438.70)
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.