Free Grade 3 Introduction to Introducing Percentage Decrease Essentials Flashcards
Free Grade 3 flashcards for Introduction to Introducing Percentage Decrease Essentials: 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.
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Stretch
30 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify introduction to introducing percentage decrease essentials
Identify introduction to introducing percentage decrease essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain introduction to introducing percentage decrease essentials
Explain introduction to introducing percentage decrease essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introduction to introducing percentage decrease essentials
Calculate introduction to introducing percentage decrease essentials accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introduction to introducing percentage decrease essentials
Compare introduction to introducing percentage decrease essentials 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 Introduction to Introducing Percentage Decrease Essentials 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 25% of 800.[1]
- 2.Find 25% of 380.[1]
- 3.Find 50% of 260.[1]
- 4.Find 25% of 540.[1]
- 5.Find 12.5% of 380.[2]
- 6.Find 12.5% of 200.[2]
- 7.Find 20% of 300.[2]
- 8.Find 30% of 320.[2]
- 9.Increase $100.00 by 5%.[3]
- 10.Decrease $60.00 by 35%.[3]
- 11.Increase $40.00 by 35%.[3]
- 12.Decrease $320.00 by 12.5%.[3]
Show answers and working
1. 200
1% of 800 = 8. 25% = 8 × 25 = 200.
2. 95
1% of 380 = 3.8. 25% = 3.8 × 25 = 95.
3. 130
1% of 260 = 2.6. 50% = 2.6 × 50 = 130.
4. 135
1% of 540 = 5.4. 25% = 5.4 × 25 = 135.
5. 47.5
1% of 380 = 3.8. 12.5% = 3.8 × 12.5 = 47.5.
6. 25
1% of 200 = 2. 12.5% = 2 × 12.5 = 25.
7. 60
1% of 300 = 3. 20% = 3 × 20 = 60.
8. 96
1% of 320 = 3.2. 30% = 3.2 × 30 = 96.
9. $105.00
Multiplier: 1 + 0.05 = 1.05. 100 × 1.05 = 105.
10. $39.00
Multiplier: 1 − 0.35 = 0.65. 60 × 0.65 = 39.
11. $54.00
Multiplier: 1 + 0.35 = 1.35. 40 × 1.35 = 54.
12. $280.00
Multiplier: 1 − 0.125 = 0.875. 320 × 0.875 = 280.
Worked examples
Find 50% of 460.
- 1% of 460 = 4.6.
- 50% = 4.6 × 50 = 230.
- Answer: 230
Find 5% of 60.
- 1% of 60 = 0.6.
- 5% = 0.6 × 5 = 3.
- Answer: 3
Increase $180.00 by 12.5%.
- Multiplier: 1 + 0.125 = 1.125.
- 180 × 1.125 = 202.5.
- Answer: $202.50
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
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Frequently asked
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- What should a learner already know before this?
- Start with Percentage Increase. Each one has its own free lesson, worksheet and quiz.
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- Move on to Key Vocabulary of Introducing Percentage Decrease Essentials, Rules and Methods in Introducing Percentage Decrease Essentials, Working with Introducing Percentage Decrease Essentials, Introducing Percentage Decrease Essentials in Examinations, which build directly on this idea.
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