AMIR MAHMUD HASIBUAN; NOVEN CHRISTOPER BUTARBUTAR; NIKO ALRIADI SINAGA. CHALLENGES OF ELEMENTARY SCHOOL STUDENTS IN UNDERSTANDING ADDITION SENTENCES AND TEACHER STRATEGIES: A LITERATURE REVIEW. Jurnal Merah Putih Sekolah Dasar, [S. l.], v. 2, n. 3, p. 228–236, 2025. DOI: 10.24114/jmpsd.v2i5.71037. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jmpsd/article/view/71037. Acesso em: 29 jan. 2026.