1.
A psicopedagógico look at teaching multiplication of operations and division of natural numbers proposed 1st to 3 year in textbooks of early years of basic education. RSD [Internet]. 2019 Jan. 1 [cited 2025 Jun. 28];8(2):e982564. Available from: https://ojs34.rsdjournal.org/index.php/rsd/article/view/564