Improving Mathematical Problem-Solving Abilities Through An Open-Ended Approach In Grade VI Of Mi Maraqitta’limat Anyar In The 2025/2026 Academic Year. Jurnal, Pendidikan [Internet]. 2026 Jun. 24 [cited 2026 Jun. 24];11(2):347-53. Available from: https://ejournal.mandalanursa.org/index.php/JUPE/article/view/10786