Free Grade 3 Introducing Percentage Decrease Common Errors Quizzes
Free Grade 3 quizzes for Introducing Percentage Decrease Common Errors: 12 real questions with a full answer key and worked solutions. Per cent means 'out of 100'. Find 10% by dividing by 10 or 1% by dividing by 100, then build up. For an increase or decrease, use a multiplier.
Free
Core
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introducing percentage decrease common errors
Identify introducing percentage decrease common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introducing percentage decrease common errors
Explain introducing percentage decrease common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing percentage decrease common errors
Calculate introducing percentage decrease common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing percentage decrease common errors
Compare introducing percentage decrease common errors accurately in a familiar context.
Assessed by: Exit ticket of four short items
Prerequisites
Close these gaps first — each has its own free lesson, worksheet and quiz.
How Introducing Percentage Decrease Common Errors works
Per cent means 'out of 100'. Find 10% by dividing by 10 or 1% by dividing by 100, then build up. For an increase or decrease, use a multiplier.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.Find 50% of 460.[1]
- 2.Find 25% of 740.[1]
- 3.Find 75% of 680.[1]
- 4.Find 25% of 460.[1]
- 5.Find 15% of 500.[2]
- 6.Find 5% of 340.[2]
- 7.Find 12.5% of 660.[2]
- 8.Find 5% of 380.[2]
- 9.Increase $680.00 by 15%.[3]
- 10.Increase $120.00 by 35%.[3]
- 11.Increase $320.00 by 20%.[3]
- 12.Decrease $380.00 by 12.5%.[3]
Show answers and working
1. 230
1% of 460 = 4.6. 50% = 4.6 × 50 = 230.
2. 185
1% of 740 = 7.4. 25% = 7.4 × 25 = 185.
3. 510
1% of 680 = 6.8. 75% = 6.8 × 75 = 510.
4. 115
1% of 460 = 4.6. 25% = 4.6 × 25 = 115.
5. 75
1% of 500 = 5. 15% = 5 × 15 = 75.
6. 17
1% of 340 = 3.4. 5% = 3.4 × 5 = 17.
7. 82.5
1% of 660 = 6.6. 12.5% = 6.6 × 12.5 = 82.5.
8. 19
1% of 380 = 3.8. 5% = 3.8 × 5 = 19.
9. $782.00
Multiplier: 1 + 0.15 = 1.15. 680 × 1.15 = 782.
10. $162.00
Multiplier: 1 + 0.35 = 1.35. 120 × 1.35 = 162.
11. $384.00
Multiplier: 1 + 0.2 = 1.2. 320 × 1.2 = 384.
12. $332.50
Multiplier: 1 − 0.125 = 0.875. 380 × 0.875 = 332.5.
Worked examples
Find 25% of 320.
- 1% of 320 = 3.2.
- 25% = 3.2 × 25 = 80.
- Answer: 80
Find 12.5% of 800.
- 1% of 800 = 8.
- 12.5% = 8 × 12.5 = 100.
- Answer: 100
Increase $200.00 by 30%.
- Multiplier: 1 + 0.3 = 1.3.
- 200 × 1.3 = 260.
- Answer: $260.00
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Finds 10% and stops when asked for a 10% decrease.
Correction: Subtract the 10% from the original.
Thinks a 50% rise then 50% fall returns to the start.
Correction: The second percentage is of a different amount.
Teacher tips
- · Teach 10%, 5%, 1% building blocks before multipliers.
Parent tips
- · Work out the tip at a restaurant together.
Real-life applications
- · Sales, tips, tax and interest.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
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Frequently asked
- Is this Grade 3 Introducing Percentage Decrease Common Errors quiz really free?
- Yes. Every quizzes on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
- What should a learner already know before this?
- Start with Introducing Percentage Decrease Word Problems, Introducing Percentage Decrease Techniques, Percentage Increase. Each one has its own free lesson, worksheet and quiz.
- How is the quiz sequenced?
- Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
- What comes next after Introducing Percentage Decrease Common Errors?
- Move on to Working with Percentage Decrease, Percentage Decrease in Context, which build directly on this idea.
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