High School Student Levels of Arithmetic Knowledge When Solving Additive Word Problems: ? Case Study - Camilo Andrés Rodríguez-Nieto; José David Cabarcas-Jiménez; Adriana Lucía Sarmiento-Reales; Benilda María Cantillo-Rudas; Jesús David Berrio-Valbuena; Sudirman Sudirman; Angela Castro Inostroza (International Electronic Journal of Mathematics Education, 2025)