Decimals Quiz

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By JordSmells
J
JordSmells
Community Contributor
Quizzes Created: 1 | Total Attempts: 6,490
| Attempts: 6,541
Quiz Lesson
SettingsSettings
Please wait...
  • 1/10 Questions

    Subtract 0.1 from 0.5.

    • 0.4
    • 0.35
    • 0.45
    • 0
Please wait...
About This Quiz


Decimals are more than just dots on a page; they are crucial for accurate measurement and calculation in everyday math. Our Decimals Quiz is designed to help you master these important figures through a series of focused and direct questions. This quiz will challenge you with various decimal operations including addition, subtraction, multiplication, and division. You'll also encounter questions on proper decimal placement, conversion between decimals and fractions, and rounding decimals to different places.

Each question aims to reinforce your understanding and ability to apply decimals in practical scenarios. Whether you're a student looking to improve your math skills or someone who just wants to brush up on decimals, this quiz offers a clear path to enhancing your numerical accuracy. Let's get started and see how precise you can be with your answers!

Decimals Quiz - Quiz

Quiz Preview

  • 2. 

    If you subtract 0.4 from 0.9, what is the result?

    • 0.5

    • 0.6

    • 0.4

    • 0.49

    Correct Answer
    A. 0.5
    Explanation
    Subtracting 0.4 from 0.9 gives 0.5. Aligning the decimals and subtracting directly, you subtract each column, simplifying to a direct computation that shows how smaller numbers subtract from larger numbers in decimal form without additional complexity.

    Rate this question:

  • 3. 

    If you add 0.3 to 0.6, what do you get?

    • 0.9

    • 0.8

    • 1

    • 0.6

    Correct Answer
    A. 0.9
    Explanation
    Adding 0.3 to 0.6 results in 0.9. This operation involves simple addition where you align the decimals and add up the digits. Both numbers have one decimal place, so the addition is straightforward, resulting in 0.9. This example shows basic decimal addition, essential for everyday calculations.

    Rate this question:

  • 4. 

    Multiply 0.2 by 0.3.

    • 0.06

    • 0.05

    • 0.5

    • 0.006

    Correct Answer
    A. 0.06
    Explanation
    Multiplying 0.2 by 0.3 gives 0.06. To multiply decimals, first multiply as if they were whole numbers (2 * 3 = 6). Since the total number of decimal places in the factors is 2 (one in each number), you place two decimal places in the product, converting 6 into 0.06.

    Rate this question:

  • 5. 

    Divide 0.9 by 0.3.

    • 3

    • 0

    • 2

    • 30

    Correct Answer
    A. 3
    Explanation
    Dividing 0.9 by 0.3 results in 3. In decimal division, you determine how many times the divisor fits into the dividend. Since 0.3 fits three times into 0.9, the quotient is 3. This operation showcases how division can simplify to a more manageable form by eliminating decimal points when possible.

    Rate this question:

  • 6. 

    What is 0.5 plus 0.25?

    • 0.75

    • 0.7

    • 0.725

    • 0.8

    Correct Answer
    A. 0.75
    Explanation
    Adding 0.5 and 0.25 yields 0.75. This addition involves aligning the decimal points and adding the numbers column by column. Since 0.5 can be expressed as 0.50, adding 0.50 and 0.25 results in 0.75. This operation demonstrates the importance of place value in decimal addition, where each digit must be accurately positioned for correct summation.

    Rate this question:

  • 7. 

    Convert 1/4 to a decimal.

    • 0.25

    • 0.50

    • 1

    • 0.75

    Correct Answer
    A. 0.25
    Explanation
    To convert a fraction to a decimal, divide the numerator (top number) by the denominator (bottom number). In this case, 1 divided by 4 equals 0.25.  Sources and related content

    Rate this question:

  • 8. 

    What is 0.12 plus 0.08?

    • 0.2

    • 0.2

    • 2

    • 0.012

    Correct Answer
    A. 0.2
    Explanation
    Adding 0.12 and 0.08 results in 0.20. When adding these decimals, align the decimal points and add the digits column by column. The addition of 12 and 8 yields 20, placing the decimal gives 0.20, showcasing straightforward addition without carryover.

    Rate this question:

  • 9. 

    Round 0.666 to the nearest tenth.

    • 0.7

    • 0.6

    • 0.66

    • 0.67

    Correct Answer
    A. 0.7
    Explanation
    Rounding 0.666 to the nearest tenth gives 0.7. In rounding, you look at the digit immediately after the place to which you are rounding (here, the hundredth place). If this digit is 5 or greater, you round up the tenths place. Thus, 0.666 rounds up to 0.7.

    Rate this question:

  • 10. 

    Multiply 0.5 by 0.04.

    • 0.02

    • 0.2

    • 0.004

    • 0.002

    Correct Answer
    A. 0.02
    Explanation
    Multiplying 0.5 by 0.04 gives 0.02. You multiply the numbers ignoring the decimals (5 * 4 = 20) and then count the total number of decimal places in the original numbers (1 in 0.5 and 2 in 0.04, totaling 3). Placing three decimal places from the right in 20 gives 0.02.

    Rate this question:

Quiz Review Timeline (Updated): Apr 15, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Apr 15, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 15, 2008
    Quiz Created by
    JordSmells
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.