Free Grade 3 Percentage of an Amount Lessons
Free Grade 3 lessons for Percentage of an Amount: 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
Higher
20 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- RememberIdentify percentage of an amount
Identify percentage of an amount accurately in a familiar context.
Assessed by: Exit ticket of four short items
- UnderstandExplain percentage of an amount
Explain percentage of an amount accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate percentage of an amount
Calculate percentage of an amount accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare percentage of an amount
Compare percentage of an amount 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 of an Amount 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 10% of 140.[1]
- 2.Find 25% of 760.[1]
- 3.Find 25% of 60.[1]
- 4.Find 75% of 440.[1]
- 5.Find 20% of 800.[2]
- 6.Find 15% of 320.[2]
- 7.Find 20% of 420.[2]
- 8.Find 35% of 680.[2]
- 9.Decrease $160.00 by 35%.[3]
- 10.Increase $560.00 by 12.5%.[3]
- 11.Decrease $500.00 by 5%.[3]
- 12.Decrease $260.00 by 35%.[3]
Show answers and working
1. 14
1% of 140 = 1.4. 10% = 1.4 × 10 = 14.
2. 190
1% of 760 = 7.6. 25% = 7.6 × 25 = 190.
3. 15
1% of 60 = 0.6. 25% = 0.6 × 25 = 15.
4. 330
1% of 440 = 4.4. 75% = 4.4 × 75 = 330.
5. 160
1% of 800 = 8. 20% = 8 × 20 = 160.
6. 48
1% of 320 = 3.2. 15% = 3.2 × 15 = 48.
7. 84
1% of 420 = 4.2. 20% = 4.2 × 20 = 84.
8. 238
1% of 680 = 6.8. 35% = 6.8 × 35 = 238.
9. $104.00
Multiplier: 1 − 0.35 = 0.65. 160 × 0.65 = 104.
10. $630.00
Multiplier: 1 + 0.125 = 1.125. 560 × 1.125 = 630.
11. $475.00
Multiplier: 1 − 0.05 = 0.95. 500 × 0.95 = 475.
12. $169.00
Multiplier: 1 − 0.35 = 0.65. 260 × 0.65 = 169.
Worked examples
Find 75% of 60.
- 1% of 60 = 0.6.
- 75% = 0.6 × 75 = 45.
- Answer: 45
Find 60% of 60.
- 1% of 60 = 0.6.
- 60% = 0.6 × 60 = 36.
- Answer: 36
Decrease $140.00 by 15%.
- Multiplier: 1 − 0.15 = 0.85.
- 140 × 0.85 = 119.
- Answer: $119.00
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.
Every free resource for Percentage of an Amount
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Frequently asked
- Is this Grade 3 Percentage of an Amount lesson really free?
- Yes. Every lessons 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 Decimals. Each one has its own free lesson, worksheet and quiz.
- How is the lesson 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 Percentage of an Amount?
- Move on to Percentage Increase, Percentage Decrease, Reverse Percentages, Percentage Change, which build directly on this idea.
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