Class 8 – Percentage Master

Percentage Master | Grade 8 Math

Introduction Examples Practice Final Quiz

Percentage Master 🚀

A comprehensive, interactive guide designed for Grade 8 students to master the power of percentages.

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Percentage means "parts per hundred". It is a mathematical way of expressing a number as a fraction of 100, symbolized by the % sign.

25% = 25 Squares Colored

Decimal Conversion

Move the decimal point two places to the left.
85% ➔ 0.85

Fraction Conversion

Write the number over 100 and simplify.
40% ➔ 40/100 ➔ 2/5

Example 1: Basic Percentage

Find 20% of $50

Step 1 Convert to decimal: 0.20

Step 2 Multiply by base value: 0.20 × 50 = $10

Example 2: Discounts (2-Step)

A $200 jacket is 15% off. What is the new price?

Step 1 Calculate discount: 0.15 × 200 = $30

Step 2 Subtract from original: 200 - 30 = $170

1. Calculate 15% of 60.

2. Convert 0.5 to a percentage.

Question 1: Which percentage is the same as 3/4?

34% 0.75% 75% 7.5%

Question 2: 5% of a number is 10. What is the number?

50 200 100 500

Question 3: Increase 80 by 25%.

100 120 90 105

Question 4: Express 0.045 as a percentage.

0.45% 45% 450% 4.5%

Question 5: A laptop costs $800. If there is a 10% student discount, what is the savings amount?

$8 $80 $720 $100

Question 6: What is 150% of 40?

60 40 100 150

Question 7: A test has 20 questions. If you get 18 correct, what is your percentage score?

18% 80% 90% 95%

Question 8: Convert 1/8 to a percentage.

12% 12.5% 8% 0.125%

Question 9: If the price of a game rises from $40 to $50, what is the percentage increase?

10% 20% 50% 25%

Question 10: Find 0.2% of 5000.

1 10 100 0.1

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