SUBRAMANIAM, K. Giving Meaning to Numbers and Operations in Arithmetic. Voices of Teachers and Teacher Educators, [S. l.], v. 5, n. 1, p. p. 18–25, 2016. Disponível em: http://ejournals.ncert.gov.in/index.php/vtte/article/view/125. Acesso em: 16 jun. 2025.