YAŞAR AKKAN; ADNAN BAKİ; ÜNAL ÇAKIROĞLU. Differences between Arithmetic and Algebra: Importance of Pre-algebra. Elementary Education Online, [S. l.], v. 10, n. 3, p. 812–823, 2023. Disponível em: https://ilkogretim-online.org./index.php/pub/article/view/1258. Acesso em: 5 jul. 2024.