You can find the Class 9 Samacheer Kalvi Half Yearly Exam 2025 question papers and answer keys including Mathematics and other subjects for both Tamil medium and English medium on educational websites that collect them after the exams are held. These papers include the original question paper and the solved answer key PDFs which you can download for practice and checking your responses. A reliable source to access these subject wise papers and answer keys is Careers360 which provides downloads for Maths English Science Social Science and more once they are available. You can visit this Careers360 link to download and use the 9th standard Half Yearly Exam question papers and answer keys for the 2025 26 academic year https://school.careers360.com/boards/dge-tamil-nadu/tamil-nadu-9th-half-yearly-question-paper-2025-26 . These PDFs help you compare your answers with the correct solutions and improve your preparation for future exams.