A game proposal for teaching math operations to 6th / 9th grade students. Research, Society and Development, [S. l.], v. 10, n. 1, p. e37110111878, 2021. DOI: 10.33448/rsd-v10i1.11878. Disponível em: https://rsdjournal.org/rsd/article/view/11878. Acesso em: 5 dec. 2025.