To stay in touch with math, the annually publicized math problems from the German Abitur[0] are great! The problems are already separated into three difficultie

To stay in touch with math, the annually publicized math problems from the German Abitur[0] are great! The problems are already separated into three difficulties, making it suitable to include in your website (although they might need translating). [0] https://www.iqb.hu-berlin.de/abitur/pools2023/mathematik/erhoeht/ https://www.iqb.hu-berlin.de/abitur/pools2023/mathematik/erh...