The teaser in question comes from X (formerly Twitter) user Ganesh UOR, who is known for regularly sharing thought-provoking brain teasers. The puzzle reads: "Brain test: Divide 90 by half and then ...

Best Math Games for 4th Grade Last updated: July 5, 2025 by Christine Elgersma Math class can move pretty fast for some kids, and as they progress through more challenging concepts, it can help to ...