Earlier, we told you about the 10 smartest kids in the world.
They are ranked by a site called Brilliant.org, which asks users progressively harder math and science problems.
Think you might be as smart as one of these tweens or teens?
Prove it by solving some of the math problems they've solved.
Here's a problem 15-year-old Phoebe Cai solved about dominoes
Dylan Toh, 12, solved this ridiculously hard geometry problem.
Tadewos Abiye Getachew, 17, nailed this tricky algebra question.
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