Mendonça Campos, T. M. et al. (2007) “ADDITIVE STRUCTURES IN THE FIRST GRADES OF BASIC EDUCATION: A DIAGNOSTIC STUDY IN DIFFERENTE CONTEXTS”, Revista Latinoamericana de Investigación en Matemática Educativa, 10(2), pp. 219–239. Available at: https://relime.org/index.php/relime/article/view/413 (Accessed: 9 October 2026).