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Try a quick Mathematics round

Answer easy, medium, and hard questions. Install the app for the full 18-question duel.

Question 1 of 3 Easy

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1 Easy

The name Google is a misspelling of which massive mathematical number?

Answer: googol
2 Medium

Which mathematical object has only one side and one edge?

Answer: Möbius strip
3 Hard

Russell's Paradox involves a set that contains all sets that do not...

Answer: Contain themselves
4 Easy

What term describes the middle number when data is ordered from least to greatest?

Answer: Median

Why: Unlike the mean, the median is unaffected by extreme outliers, which is why median household income is often used instead of average income.
5 Medium

In calculus, what is the derivative of the $\sin(x)$ function?

Answer: $\cos(x)$
6 Hard

Which number's digits contain more information than a brain-sized black hole?

Answer: Graham's number