CAIZA-LLAMBO, María Maribel. Importance of the development of skills in addition and subtraction of fractions as a methodological proposal of the teaching exercise. YUYAY: Estrategias, Metodologías & Didácticas Educativas, GYE-FLO, v. 2, n. 1, p. 150–162, 2023. DOI: 10.59343/yuyay.v2i1.32. Disponível em: https://jlacolectivo.com/revistas/index.php/YUYAY/article/view/32. Acesso em: 22 jan. 2026.