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Math trivia

Math trivia is less about long sums and more about the ideas: primes, angles, patterns, and the people who found them. Most questions can be answered in your head, if you know the trick.

Try the 10 below, then play Math in a live duel, where every second counts.

  • Numbers and primes
  • Geometry and shapes
  • Famous problems
  • Mathematicians
  • Quick mental arithmetic

10 Math questions to try

Tap an answer to see if you're right, and why. No sign-up, no timer.

  1. How many millimeters are in a centimeter?

    Question 1 of 10, easy

  2. What is 1,000 − 357?

    Question 2 of 10, easy

  3. How many degrees are in a right angle?

    Question 3 of 10, easy

  4. How many degrees is each angle of an equilateral triangle?

    Question 4 of 10, easy

  5. How many edges does a square-based pyramid have?

    Question 5 of 10, medium

  6. What year does the Roman numeral MCM stand for?

    Question 6 of 10, medium

  7. What is the lowest common multiple of 4 and 10?

    Question 7 of 10, medium

  8. What is 1/8 + 3/8?

    Question 8 of 10, medium

  9. How many diagonals does a hexagon have?

    Question 9 of 10, hard

  10. Which Persian mathematician's name gave us the word "algorithm"?

    Question 10 of 10, hard

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