SkvortsovaSvitlana, ОnoprienkoOksana, and RomanyshynRuslana. “Mathematical Word Problems That Contain a Constant in the Course of Mathematics of Primary School in Ukraine ”. Journal of Vasyl Stefanyk Precarpathian National University 8, no. 1 (April 1, 2021): 46-64. Accessed October 3, 2023. https://scijournals.pnu.edu.ua/index.php/jpnu/article/view/4939.