Improving The Ability Of Subtracting Small Numbers By Large Numbers Using The Jurang Board Media For 2nd Grade Elementary School Students At Sdn 4 Gondang In The 2024/2025 Academic Year. Jurnal Ilmiah Mandala Education, [S. l.], v. 11, n. 4, p. 985–991, 2025. DOI: 10.58258/jime.v11i4.9366. Disponível em: https://ejournal.mandalanursa.org/index.php/JIME/article/view/9366. Acesso em: 18 sep. 2026.