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Quizzes > High School Quizzes > Mathematics

Master Your Percentage Practice Quiz Now

Boost your math skills with percent quizzes

Difficulty: Moderate
Grade: Grade 6
Study OutcomesCheat Sheet
Paper art illustrating a trivia quiz on percentage problems for middle school students.

What is 50% of 100?
50
100
25
75
50% means half, so half of 100 is 50. This basic calculation reinforces the concept of finding a portion of a whole using percentages.
Express 0.25 as a percentage.
25%
0.25%
2.5%
250%
Multiplying 0.25 by 100 converts it to 25%. Converting decimals to percentages is an essential arithmetic skill.
What is the percentage representation of the fraction 1/2?
50%
0.5%
2%
100%
The fraction 1/2 equals 0.5, and multiplying by 100 gives 50%. This demonstrates the conversion between fractions and percentages.
Find 20% of 200.
40
20
60
50
20% of 200 is calculated as 0.2 multiplied by 200, which equals 40. This problem reinforces basic percentage calculations.
If you score 18 out of 20, what is your percentage score?
90%
85%
95%
80%
Dividing 18 by 20 gives 0.9, and multiplying by 100 results in 90%. This calculation applies percentage concepts to real test results.
A shirt that originally costs $40 is on sale for 25% off. What is the sale price?
$30
$35
$25
$40
A 25% discount on $40 reduces the price by $10, so the sale price becomes $30. This question combines basic percentage calculations with everyday money problems.
If 30% of a number is 18, what is the number?
60
54
48
66
Setting up the equation 0.3x = 18 and solving for x gives 60. This reinforces the concept of finding the whole when a percentage of it is known.
What is the percent change if a quantity decreases from 80 to 60?
25%
33%
20%
50%
The decrease from 80 to 60 is 20, and 20 is 25% of 80. This problem tests the ability to calculate percentage decrease correctly.
Convert 75% to a decimal.
0.75
7.5
0.075
75
To convert a percentage to a decimal, divide by 100. Therefore, 75% becomes 0.75. This conversion is fundamental to many mathematical applications.
What is 15% of 200?
30
15
35
25
15% of 200 is equal to 0.15 multiplied by 200, which gives 30. This reinforces the multiplication method for finding percentages of a number.
If 60 is 40% of a number, what is the number?
150
120
100
140
The equation 0.4x = 60 leads to x = 150. This reverse calculation confirms the relationship between a part and its percentage of the whole.
A population increased from 800 to 960. What is the percent increase?
20%
15%
25%
30%
The increase is 160, and when you divide 160 by the original 800 and multiply by 100, you get 20%. This problem applies percentage increase in a real-world context.
Express the fraction 3/5 as a percentage.
60%
50%
75%
80%
The fraction 3/5 converts to 0.6, which when multiplied by 100 gives 60%. This illustrates the process of converting fractions to percentages.
What is the value of 200% of 50?
100
150
200
50
200% means twice the value of the number. Therefore, 2 multiplied by 50 equals 100. This question shows how percentages greater than 100% work.
A test score increased from 70% to 84%. What is the percent increase relative to the original score?
20%
10%
14%
24%
The increase is 14 percentage points, and when compared to the original score of 70%, it represents a 20% increase. This problem tests understanding of relative percentage increase.
If you add 30% of a quantity to the original quantity, by what percent has the original quantity increased?
30%
33.3%
130%
60%
Adding 30% of a number to itself means the total is 130% of the original, which is a 30% increase. This tests the ability to recognize percentage growth.
Convert 0.125 to a percentage.
12.5%
1.25%
125%
0.125%
Multiplying 0.125 by 100 converts the decimal to 12.5%. This conversion is a fundamental aspect of understanding percentages.
If x% of 50 is 15, what is the value of x?
30
25
35
40
The equation (x/100)*50 = 15 simplifies to x = 30. This exercise reinforces solving for an unknown percentage in an equation.
A store increases the price of a $50 item by 10%. What is the new price?
$55
$50
$60
$65
10% of $50 is $5, so the new price is $50 + $5 = $55. This question applies percentage increase to a common shopping scenario.
Find the percentage of 60 that is 18.
30%
20%
25%
35%
Dividing 18 by 60 yields 0.3, and converting this to a percentage gives 30%. This reinforces the ability to calculate what part one number is of another in percentage form.
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Study Outcomes

  1. Understand how to convert percentages to decimals and fractions.
  2. Analyze percentage problems using real-world scenarios.
  3. Calculate percentage increase and decrease accurately.
  4. Apply percentage formulas to solve practical math problems.
  5. Evaluate personal performance to identify strengths and areas for improvement.

Percentage Quiz Practice Test Cheat Sheet

  1. Think of Percentages as Pizza Slices - Imagine slicing a giant pizza into 100 equal pieces; each percent point is one tasty slice. So when you see 25%, you're grabbing 25 slices out of 100 to enjoy! GeeksforGeeks: Percentage Basics
  2. Convert Fractions to Percentages - To turn any fraction into a percent, simply multiply by 100 and tack on the "%" symbol - voilà, instant clarity. For example, 1/5 becomes 0.2 × 100 = 20%. GeeksforGeeks: Fraction-to-Percent Tricks
  3. Find a Percentage of a Number - Want 10% of 50? Change 10% into a decimal (0.10) and multiply: 50 × 0.10 = 5. It's as easy as mixing ingredients for a recipe! GCF Global: Calculating Percentages
  4. Calculate Percentage Change - To see how much something has grown or shrunk, subtract the original value from the new value, divide by the original, then multiply by 100. This reveals the real percent jump or dip! GeeksforGeeks: Percentage Change Formula
  5. Swap the Numbers: Commutative Percentages - Here's a neat trick: x% of y is always the same as y% of x. So 10% of 50 equals 50% of 10 - mind blown! GeeksforGeeks: Percents Shortcut
  6. Convert Percentages to Fractions - Flip your percent into a fraction by dividing by 100 and simplifying. For instance, 25% turns into 25/100, which boils down to the fraction 1/4. GeeksforGeeks: Percent-to-Fraction Guide
  7. Compute a Percent Increase - To boost a value by a percentage, multiply the original number by (1 + percent/100). If you increase 80 by 25%, calculate 80 × 1.25 = 100. GeeksforGeeks: Applying a Percent Increase
  8. Compute a Percent Decrease - Shrinking a value works similarly: multiply by (1 - percent/100). So dropping 80 by 25% means 80 × 0.75 = 60. Easy math, big impact! GeeksforGeeks: Applying a Percent Decrease
  9. Reverse an Increase to Find the Original - If you know the new value after a percent hike, divide by (1 + percent/100) to backtrack to the starting point. For example, 100 after a 25% jump came from 100 ÷ 1.25 = 80. GeeksforGeeks: Undoing a Percent Increase
  10. Reverse a Decrease to Find the Original - Likewise, to uncover the original before a percent drop, divide by (1 - percent/100). So if 60 is 75% of something, 60 ÷ 0.75 = 80. GeeksforGeeks: Undoing a Percent Decrease
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