Recent analysis of national high school graduation exam results reveals Hà Tĩnh and Tuyên Quang provinces achieved the highest percentage of perfect scores in mathematics. While Hanoi and Ho Chi Minh City produced the largest *number* of perfect scores overall, their ratios were lower when considered against total test-takers. This indicates a strong performance in mathematical proficiency among students in Hà Tĩnh and Tuyên Quang. The data suggests these provinces may have implemented effective teaching strategies or benefited from focused educational initiatives. Officials are examining the results to identify best practices that could be replicated nationwide. This marks a significant achievement for the two provinces and highlights regional variations in exam performance. The overall results are being reviewed as part of the national education assessment process.