Kangaroo.Study's 2025 RMO R1 Detailed Solutions——First Release

The RMO Round 1 concluded yesterday. We promptly shared the answer key with everyone and conducted a detailed analysis session on YouTube in the evening. Additionally, our Kangaroo teachers worked through the night to compile a comprehensive summary and solutions for all the problems. After checking the answers, we believe you now have a preliminary sense of your performance. This year's exam included some challenging questions, but none fell outside the scope of our teaching materials—in fact, some were topics we had just covered. Feel free to review the problems, and even those who didn’t take the exam can give them a try. Detailed solutions are attached at the end. Compared to previous years, this year's RMO also showed some shifts in the exam trends, such as an increase in computational problems and the absence of geometry model questions. We will soon publish an updated RMO question pattern analysis, which we hope will be helpful for P4/P5 students. For more information and to join the group, please contact Teacher Gao.