Designing A Place Value Chart to Help Pupils In Basic Three Subtract Three-Digit Numbers. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 12, n. 11, p. 3748–3765, 2024. DOI: 10.18535/ijsrm/v12i11.el01. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/5811. Acesso em: 21 nov. 2024.