Intellectual Olympiad in Mathematics - 2026 ongoing

Subject: Mathematics
Level: VI
Category: educator
Quiz questions: in Chinese
Example question: 下列哪一个等式正确地表示了完全平方公式？ (a+b)^2=a^2+b^2, (a-b)^2=a^2-2ab+b^2, (a+b)^2=a^2+2ab+b^2, (a+b)^2=a^2-ab+b^2