Free Grade 3 Percentage Decrease in Context Essentials in Examinations Flashcards
Free Grade 3 flashcards for Percentage Decrease in Context Essentials in Examinations: 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
Foundation
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain percentage decrease in context essentials in examinations
Explain percentage decrease in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate percentage decrease in context essentials in examinations
Calculate percentage decrease in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare percentage decrease in context essentials in examinations
Compare percentage decrease in context essentials in examinations accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify percentage decrease in context essentials in examinations
Justify percentage decrease in context essentials in examinations 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 Percentage Decrease in Context Essentials in Examinations 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 660.[1]
- 2.Find 25% of 100.[1]
- 3.Find 75% of 380.[1]
- 4.Find 10% of 460.[1]
- 5.Find 15% of 260.[2]
- 6.Find 35% of 760.[2]
- 7.Find 35% of 560.[2]
- 8.Find 35% of 140.[2]
- 9.Increase $540.00 by 35%.[3]
- 10.Increase $200.00 by 35%.[3]
- 11.Increase $420.00 by 12.5%.[3]
- 12.Decrease $560.00 by 5%.[3]
Show answers and working
1. 330
1% of 660 = 6.6. 50% = 6.6 × 50 = 330.
2. 25
1% of 100 = 1. 25% = 1 × 25 = 25.
3. 285
1% of 380 = 3.8. 75% = 3.8 × 75 = 285.
4. 46
1% of 460 = 4.6. 10% = 4.6 × 10 = 46.
5. 39
1% of 260 = 2.6. 15% = 2.6 × 15 = 39.
6. 266
1% of 760 = 7.6. 35% = 7.6 × 35 = 266.
7. 196
1% of 560 = 5.6. 35% = 5.6 × 35 = 196.
8. 49
1% of 140 = 1.4. 35% = 1.4 × 35 = 49.
9. $729.00
Multiplier: 1 + 0.35 = 1.35. 540 × 1.35 = 729.
10. $270.00
Multiplier: 1 + 0.35 = 1.35. 200 × 1.35 = 270.
11. $472.50
Multiplier: 1 + 0.125 = 1.125. 420 × 1.125 = 472.5.
12. $532.00
Multiplier: 1 − 0.05 = 0.95. 560 × 0.95 = 532.
Worked examples
Find 50% of 140.
- 1% of 140 = 1.4.
- 50% = 1.4 × 50 = 70.
- Answer: 70
Find 40% of 100.
- 1% of 100 = 1.
- 40% = 1 × 40 = 40.
- Answer: 40
Decrease $460.00 by 5%.
- Multiplier: 1 − 0.05 = 0.95.
- 460 × 0.95 = 437.
- Answer: $437.00
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
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- Start with Working with Percentage Decrease in Context Essentials, Rules and Methods in Percentage Decrease in Context Essentials, Working with Percentage Decrease. Each one has its own free lesson, worksheet and quiz.
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- Move on to Percentage Decrease in Context Techniques, Percentage Decrease in Context Word Problems, Percentage Decrease in Context Common Errors, which build directly on this idea.
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