Fractions in Disguise Class 8 Maths Worksheet with Quiz and Activities
Convert fractions to percentages, work out discounts and compare interest. On WitKnowLearn you get the Fractions in Disguise Class 8 online quiz, online activities and interactive games, a percent lab, a virtual lab and a worksheet-style practice sheet for Class 8 Maths.
Fractions in Disguise Class 8 Online Quiz
20 questions: 10 easy, 5 average and 5 thinking. Tap an answer and the next question comes up.
Fractions in Disguise Class 8 Activities
👆 Tap a tab to switch: Learn, Games, Labs, Challenges, Virtual Lab and Practice sheet
🧪 Percent Lab
Do the experiment on screen: 3 rounds, then see what we found.
Lab progress
- 🧪 Round 1 of 3
- ⬜ Round 2 of 3
- ⬜ Round 3 of 3
- ⬜ What did we find?
🎭 Fraction Disguises
⭐⭐⭐Goal: Sort 8 values by whether they equal 50% or less, or more than 50%.
How to play: Drag each card into its bin, or tap a card and then tap a bin.
Convert each value to a percentage.
50% or less
half or smallerMore than 50%
bigger than halfFACTS: Half is 50%.
🫧 Percent Bubbles
⭐⭐⭐Goal: Pop the 5 true facts. Leave the 4 false ones.
How to play: Tap a bubble to pop it. False bubbles wobble and stay.
Check each against a quick calculation.
FACTS: Percent means out of 100.
🧠 Percent Memory
⭐⭐⭐Goal: Match each clue with its answer.
How to play: Flip two cards. If they match, they stay open. Find all 6 pairs.
Work out each clue.
FACTS: Same value, new face.
📝 Percent Word Gaps
⭐⭐⭐Goal: Fill each gap with the right word from the tray. One word is extra.
How to play: Drag a word into a gap, or tap a word and then tap a gap.
Read the whole sentence before you choose a word.
The word percent comes from the Latin per , meaning by the hundred.
A reduction in the marked price is called a .
Money earned on a deposit is called .
Interest earned on earlier interest is interest.
The amount you first deposit is the .
FACTS: Percent has its own words.
⚖ Which Is Greater?
⭐⭐⭐Goal: In each pair, tap the greater value.
How to play: Tap one card in every pair.
Work out each value first.
FACTS: Computing decides.
🔁 Convert Lab
⭐⭐⭐Goal: Turn fractions into percentages.
How to play: Drag a number into each gap, or tap a number and then a gap.
Make the denominator 100.
1/4 equals percent.
3/20 equals percent.
7/25 equals percent.
9/50 equals percent.
FACTS: Scale to 100.
⚡ Quick Percent Lab
⭐⭐⭐Goal: Find percentages of quantities.
How to play: Drag the right number into each gap.
Use 10% and 1% steps.
10% of 360 is .
50% of 90 is .
20% of 150 is .
5% of 400 is .
FACTS: Ten percent is a tenth.
🛍 Shop Lab
⭐⭐⭐Goal: Find the price after a discount.
How to play: Drag the right number into each gap.
Subtract the saving.
Price 400 with 25% off, pay rupees.
Price 250 with 20% off, pay rupees.
Price 900 with 10% off, pay rupees.
Price 1200 with 50% off, pay rupees.
FACTS: Pay the rest.
🏦 Interest Lab
⭐⭐⭐Goal: Find simple interest in rupees.
How to play: Drag the right number into each gap.
Interest = principal × rate × time.
One year on 2000 at 5% earns rupees.
Three years on 3000 at 5% earns rupees.
5000 at 8% for 2 years earns rupees.
1500 at 10% for 4 years earns rupees.
FACTS: Rate is a percent a year.
🔬 Rise or Fall?
⭐⭐⭐Goal: Sort 6 changes by whether the final price is above or below the start.
How to play: Drag each card into a bin, or tap a card and then tap a bin.
Work from 100.
Above the start
more than 100Below the start
less than 100FACTS: The base changes.
❓ Percent Quiz
⭐⭐⭐Goal: Answer 3 questions. Each correct answer earns 1 point.
How to play: Tap the best option.
Recall the basics.
1. 2/5 as a percentage is
2. 20% of 250 is
3. Percent means out of
FACTS: Three basics.
💦 True or False Splash
⭐⭐⭐Goal: Decide if each statement is true or false.
How to play: Tap True or False.
Test each with a number.
1. 0.6 is the same as 60%.
2. A 10% rise then a 10% fall returns to the start.
3. Compound interest is more than simple interest after 2 years.
FACTS: Test with 100.
➗ Quick Sums
⭐⭐⭐Goal: Solve 3 calculations. Type the number.
How to play: Type your answer and press Check.
Convert to a fraction of 100.
1. 35% of 240
2. Price 640 after 15% off
3. Percentage rise from 80 to 100
FACTS: Practice builds speed.
🔗 Match the Term
⭐⭐⭐Goal: Match each term with its meaning.
How to play: Drag each card onto its partner, or tap a card and then tap a partner.
Think about money.
FACTS: Each has a meaning.
📖 Story Problems
⭐⭐⭐Goal: Read 3 short stories and choose the best answer.
How to play: Tap an answer.
Turn each into a percent.
1. 🎮 A game costs 1500 rupees and is sold at 30% off. The sale price is
2. 🏏 A batter hits 36 runs in 48 balls scoring shots. Shots scoring are what percent of balls?
3. 🏦 1000 rupees earns 10% interest a year. After 1 year the amount is
FACTS: Percent tells stories.
🔁 Percent Converter
⭐⭐⭐Aim
To write each fraction as an equivalent fraction with 100 as the denominator and read off the percentage.
Objectives
- Scale the denominator to 100.
Procedure
- Take the fraction.
- Find the factor that makes 100.
- Type the percentage.
- Choose the conclusion.
Multiply top and bottom by the same number to reach 100.
Observation table
| Fraction | Percent |
|---|---|
| 1/4 | |
| 3/5 | |
| 7/20 | |
| 11/50 |
Conclusion
Outcomes
- I can convert a fraction to a percentage.
- I know percent means out of 100.
🏦 Simple and Compound
⭐⭐⭐Aim
To compare the total after 3 years on 1000 rupees at 10% with simple and compound interest.
Objectives
- Track the amount year by year.
Procedure
- Start with 1000.
- Add 10% each year.
- Type the amount for compound growth.
- Choose the conclusion.
Compound: multiply the previous amount by 1.1. Simple: add 100 each year.
Observation table
| Year | Compound amount |
|---|---|
| Year 1 | |
| Year 2 | |
| Year 3 | |
| Simple at year 3 |
Conclusion
Outcomes
- I can compare simple and compound interest.
- I see why interest on interest grows faster.
📊 Shade the Hundred Bar
⭐⭐⭐Aim
To convert five fractions into percentages and see each as a shaded part of a 100% bar.
Objectives
- Scale each fraction to a denominator of 100.
- Read the percentage.
- Compare the shaded bars.
Procedure
- Type each percentage and the next bar is drawn.
- Use the Bars view and Numbers view buttons.
- Read the finished results.
- Answer the questions and choose the conclusion.
Divide the top by the bottom and multiply by 100.
Read your figure
Outcomes
- I can convert fractions to percentages.
- I can compare fractions as percentages.
- I can read a percentage bar.
Read the chapter first. Write each answer on the line. The page checks your answer as you type.
A. Fractions to percent
B. Percent of a quantity
C. Shopping
D. Interest
Fractions in Disguise: Fractions in Disguise
A short read for Class 8 before you play. These notes cover Fractions in Disguise: percentages, discounts, profit and loss, and interest.
🎭 Fractions in disguise
A percentage is a fraction whose denominator is 100. So 3/4 is 75/100, which is 75%, and the same amount is the decimal 0.75. One value, three disguises: fraction, decimal and percent.
⚖ Comparing fairly
Eesha scored 42 out of 50 in English and 70 out of 80 in Science. The totals differ, so change both to percentages: 84% and 87.5%. Now the comparison is fair, and Science is the better score.
🏦 Money and change
Percentages describe discounts, price rises and interest. A 20% rise followed by a 20% fall ends below the start, because the fall is taken on a bigger amount. Compound interest grows faster than simple interest for the same reason.
Fractions in Disguise Class 8 Maths Activities
Follow every step on the Number Train. Earn up to 3 stars in every activity.
This page covers Fractions in Disguise: percentages, discounts, profit and loss, and interest for Class 8 maths. It covers fractions as percentages, percentage of a quantity, comparing proportions, discounts, price changes, profit and loss, and simple and compound interest.
The activities are pitched at Class 8 level. Convert fractions to percentages, find discounts, track price changes, compare simple and compound interest and shade a hundred bar in the studio. Explore more Class 8 maths worksheets on WitKnowLearn after this chapter.
Key ideas and facts to know
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/4 | 0.25 | 25% |
| 3/5 | 0.6 | 60% |
| 3/20 | 0.15 | 15% |
How to use this page
- Flip the six cards and try the Percent Lab in the Learn tab.
- Play the five games and the five labs to practise each idea.
- Finish the five challenges to collect up to 15 points.
- Do two virtual experiments and shade a hundred bar in the studio.
- Take the 20-question online quiz, with assertion and reason and case study questions, and fill in the practice sheet.
Worked examples
35/100 × 95 = 33.25 g.
100 becomes 120, and 20% of 120 is 24, so the final price is 96.
This Fractions in Disguise worksheet for Class 8 science gives you online activities and interactive games that make the chapter clear. Every activity has a goal, a hint and a short fact, so students learn while they enjoy.
Complete Guide: Class 8 Maths Fractions in Disguise
This guide is for Class 8 students, parents and teachers. It covers Fractions in Disguise: percentages, discounts, profit and loss, and interest for Class 8 maths and shows how to use the quiz, labs and games on this page.
Introduction to Fractions in Disguise
Percentages let us compare different totals, calculate discounts and understand how money grows or shrinks.
What is there in this chapter
- Fractions as percentages
- Percentage of a quantity
- Comparing proportions
- Discounts and price changes
- Simple and compound interest
Learning objectives
- Convert fractions to percentages.
- Find a percentage of a quantity.
- Solve discount and interest problems.
- Reason with assertions and case studies.
Learning outcomes
- I can convert a fraction to a percentage.
- I can calculate discounts and price rises.
- I can compare simple and compound interest.
Fractions in Disguise Class 8 resources on this page
| Resource | What it gives |
|---|---|
| Online quiz | 20 questions: 10 easy, 5 average and 5 thinking, with assertion and reason and case study questions and a full review |
| Flip cards | 6 picture cards with one-line rules |
| Percent Lab | A hands-on lab with 3 rounds |
| Games | 5 interactive games |
| Labs | 5 activity labs |
| Virtual Lab | 2 experiments plus a studio that shades fractions on a 100% bar |
| Challenges | 5 challenges, 15 points in all |
| Practice sheet | A worksheet-style sheet with 16 questions, name and date lines and a live score |
Key facts
| Idea | Rule |
|---|---|
| Percent | out of 100 |
| 10 percent | divide by 10 |
| Discount | subtract the saving |
| Rise then fall | ends below start |
| Compound | interest on interest |
Types of questions you may see
- Fractions to percent
- Percent of a quantity
- Discount and rise
- Assertion and reason on percent change
Solved examples
25% of 120 is 30 g.
1000 becomes 1100, then 1210, then 1331 rupees.
Common mistakes
| Mistake | Correct idea |
|---|---|
| Taking both rise and fall on the same base | The second base is the new value |
| Comparing percentages of different totals | Find the actual amounts |
| Adding discounts 10% and 10% to get 20% | Apply them one after the other |
Fractions in Disguise in daily life
Percentages appear in sale tags, exam marks, bank interest, nutrition labels, taxes and population data.
Tips for parents and teachers
- Use 10% as a building block.
- Check a discount by estimating first.
- Practise one assertion and one case study each week.
Related Class 8 Maths Worksheets
- ％Class 8 Maths Worksheet: Percentage
- ⚖Class 8 Maths Worksheet: Comparing Quantities
- 📉Class 8 Maths Worksheet: Direct and Inverse Proportions
- ➗Class 8 Maths Worksheet: Rational Numbers
- 🧠Class 8 Maths Notes and Mind Maps
- 📚Class 8 Maths Worksheets, page 1
- 📚Class 8 Maths Worksheets, page 2
- 📚Class 8 Maths Worksheets, page 3
Fractions in Disguise Class 8 FAQs
What does percent mean?
Percent means out of 100.
How do I turn a fraction into a percentage?
Make the denominator 100, or divide the top by the bottom and multiply by 100.
Why does a 20% rise then fall not return to the start?
The fall is taken on the larger, increased amount.
What is the difference between simple and compound interest?
Simple interest is on the principal only. Compound interest is also earned on the interest.
What can students do on this page?
Students can take a 20-question online quiz with assertion and reason and case study questions, play five games, try five online activities, finish five challenges, run the Percent Lab, do two virtual experiments, shade five fractions on a hundred bar and compare the bars and numbers views,, and fill in a 16-question practice sheet with a Show answers button.
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