THE EFFECTOF MIND MAPPING TO IMPROVETHE ABILITY TO DOTHE OPERATION OF SUMMING DOWNWARD ROWSOF DYSCALCULIASTUDENTS. Primary: Jurnal Pendidikan Guru Sekolah Dasar, [S. l.], v. 10, n. 3, p. 494–500, 2021. DOI: 10.33578/10.33578/jpfkip.v10i3.8066. Disponível em: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/808. Acesso em: 21 jan. 2026.