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Number Challenge Quizzes and Trivia Questions

Number Challenge ranges from quick arithmetic to number patterns and measurement. This public preview describes the category while a worked-answer collection is prepared for editorial review.

By QZify Editorial Team · Published · Reviewed

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What you can explore

Major Number Challenge subtopics

  • Arithmetic
  • Number patterns
  • Measurement
  • Mathematical logic

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Number Challenge questions and answers

These ten questions are selected from the QZify category pool each time this page loads. Open an answer after making your choice.

  1. Number ChallengeMixed

    1. What is the smallest positive number divisible by every whole number from 1 to 10?

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    Answer: 2520

  2. Number ChallengeMixed

    2. What is the sum of the first 100 positive whole numbers?

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    Answer: 5050

  3. Number ChallengeMixed

    3. The metric prefix "atto-" makes a measurement how much smaller than the base unit?

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    Answer: One Quintillionth

  4. Number ChallengeMixed

    4. Which fraction is equal to 0.125?

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    Answer: 1/8

  5. Number ChallengeMixed

    5. In Roman Numerals, what does XL equate to?

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    Answer: 40

  6. Number ChallengeMixed

    6. What number is represented by the Roman numeral XLIX?

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    Answer: 49

  7. Number ChallengeMixed

    7. What's the square root of 49?

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    Answer: 7

  8. Number ChallengeMixed

    8. What is 2 raised to the power of 10?

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    Answer: 1024

  9. Number ChallengeMixed

    9. What is the square root of 2025?

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    Answer: 45

  10. Number ChallengeMixed

    10. What are the first 6 digits of the number "Pi"?

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    Answer: 3.14159

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