Global math archive: MIT and collaborators launched MathNet, the largest Olympiad-level problem collection, spanning 47 countries, 17 languages, and four decades of competitions. Thinking like Fermi: ...

Some readers may solve the problem procedurally: line up the two numbers, add the ones column, carry the one, and add the tens to get 43. Others might instead notice a creative shortcut: 29 + 14 is ...

Why it matters: Math quizzes combine entertainment and education, helping you boost problem-solving skills while having fun. What’s available: From kindergarten-level basics to advanced algebra and ...

Every year, thousands of college students from across the U.S. and Canada give up a full Saturday before finals begin to take a notoriously difficult, 6-hour math test — and not for a grade, but for ...