Math Quiz For Class 8 With Answers

Reviewed by Janaisa Harris
Janaisa Harris, BA-Mathematics |
Mathematics Expert
Review Board Member
Ms. Janaisa Harris, an experienced educator, has devoted 4 years to teaching high school math and 6 years to tutoring. She holds a degree in Mathematics (Secondary Education, and Teaching) from the University of North Carolina at Greensboro and is currently employed at Wilson County School (NC) as a mathematics teacher. She is now broadening her educational impact by engaging in curriculum mapping for her county. This endeavor enriches her understanding of educational strategies and their implementation. With a strong commitment to quality education, she actively participates in the review process of educational quizzes, ensuring accuracy and relevance to the curriculum.
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Math Quiz For Class 8 With Answers - Quiz

Get ready to challenge your math skills with our comprehensive Math Quiz for Class 8. Designed specifically for eighth graders, this quiz covers a wide range of topics that are crucial at this stage of learning. From mastering the complexities of algebraic expressions and equations to diving deep into the intricacies of geometry and data interpretation, our quiz offers a robust review of all essential mathematical concepts.

Whether you’re looking to solidify your understanding of fractions and decimals, or you want to test your prowess in more advanced topics like statistics and probability, our quiz provides a perfect platform. Read moreEach question is crafted to not only test your knowledge but also to enhance your problem-solving skills, encouraging you to think critically and logically.

This Math Quiz for Class 8 is ideal for students seeking to boost their grades, prepare for upcoming tests, or simply gain more confidence in their mathematical abilities. Engage with our interactive questions, get instant feedback, and track your progress as you learn.


Math Quiz for Class 8 Questions and Answers

  • 1. 

    What is the result of 15 divided by 3 times 2 plus 5?

    • A.

      20

    • B.

      25

    • C.

      15

    • D.

      10

    Correct Answer
    A. 20
  • 2. 

    Which term describes a polygon with all sides and angles equal?

    • A.

      Regular

    • B.

      Irregular

    • C.

      Equilateral

    • D.

      Quadrilateral

    Correct Answer
    A. Regular
    Explanation
    A regular polygon is defined as having all sides and all angles equal. This is distinct from an equilateral polygon, which specifically refers to equal sides, and a regular shape fulfills both conditions, having equal sides and angles.

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  • 3. 

    Simplify: (-3)^2

    • A.

      6

    • B.

      -9

    • C.

      9

    • D.

      -6

    Correct Answer
    C. 9
    Explanation
    When you square a negative number, such as -3, the result is positive because a negative multiplied by a negative gives a positive. Thus, (-3) times (-3) equals 9.

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  • 4. 

    What is the prime factorization of 60?

    • A.

      2^2 x 3 x 5

    • B.

      2 x 3 x 5

    • C.

      2^2 x 5

    • D.

      3 x 5

    Correct Answer
    A. 2^2 x 3 x 5
    Explanation
    Divide 60 by the smallest prime number 2, giving 30. Divide 30 by 2 again, giving 15. Then divide 15 by 3, giving 5, which is a prime number. The prime factors of 60 are thus 2 squared (because 2 is used twice), 3, and 5.

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  • 5. 

    Calculate the area of a triangle with a base of 10 cm and a height of 14 cm.

    • A.

      140 cm squared

    • B.

      70 cm squared

    • C.

      50 cm squared

    • D.

      120 cm squared

    Correct Answer
    B. 70 cm squared
    Explanation
    The area of a triangle is found using the formula: area = (base x height) / 2. Plugging in the values, (10 x 14) / 2 equals 70. Therefore, the area is 70 square centimeters.

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  • 6. 

    Solve for x if 4x + 5 = 21.

    • A.

      4

    • B.

      3

    • C.

      5

    • D.

      2

    Correct Answer
    A. 4
    Explanation
    To isolate x, first subtract 5 from both sides of the equation, giving 4x = 16. Then divide both sides by 4, resulting in x = 4. This value satisfies the original equation when checked.

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  • 7. 

    What is the volume of a cube with side length 3 cm?

    • A.

      9 cm cubed

    • B.

      18 cm cubed

    • C.

      27 cm cubed

    • D.

      24 cm cubed

    Correct Answer
    C. 27 cm cubed
    Explanation
    The volume of a cube is calculated by raising the side length to the power of three. For a cube with side length 3 cm, the volume is 3 x 3 x 3, which equals 27 cubic centimeters.

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  • 8. 

    If the circumference of a circle is 31.4 cm, what is its diameter? (Use pi approximately equal to 3.14)

    • A.

      10 cm

    • B.

      5 cm

    • C.

      20 cm

    • D.

      15 cm

    Correct Answer
    A. 10 cm
    Explanation
    The formula for the circumference of a circle is pi times the diameter. Rearrange to find the diameter: diameter = circumference/pi. Thus, 31.4 / 3.14 equals 10 cm.

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  • 9. 

    Convert 1500 milliliters to liters.

    • A.

      1.5 liters

    • B.

      15 liters

    • C.

      0.15 liters

    • D.

      150 liters

    Correct Answer
    A. 1.5 liters
    Explanation
    Since 1000 milliliters make up one liter, to convert milliliters to liters, divide by 1000. Therefore, 1500 milliliters divided by 1000 equals 1.5 liters.

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  • 10. 

    What is the probability of rolling an even number on a standard six-sided die?

    • A.

      1/2

    • B.

      1/3

    • C.

      2/3

    • D.

      1/6

    Correct Answer
    A. 1/2
    Explanation
    A standard six-sided die has three even numbers: 2, 4, and 6. With six possible outcomes, the probability of rolling an even number is the number of favorable outcomes divided by the total outcomes, which is 3/6 or simplified to 1/2.

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Janaisa Harris |BA-Mathematics |
Mathematics Expert
Ms. Janaisa Harris, an experienced educator, has devoted 4 years to teaching high school math and 6 years to tutoring. She holds a degree in Mathematics (Secondary Education, and Teaching) from the University of North Carolina at Greensboro and is currently employed at Wilson County School (NC) as a mathematics teacher. She is now broadening her educational impact by engaging in curriculum mapping for her county. This endeavor enriches her understanding of educational strategies and their implementation. With a strong commitment to quality education, she actively participates in the review process of educational quizzes, ensuring accuracy and relevance to the curriculum.

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  • Current Version
  • May 06, 2024
    Quiz Edited by
    ProProfs Editorial Team

    Expert Reviewed by
    Janaisa Harris
  • Oct 03, 2009
    Quiz Created by
    Hannahbanana99
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