“…The success of understanding mathematical concepts is also influenced by several factors (Andinny, 2015;Mji & Makgato, 2006;Vandini, 2016), including the learning strategies used (Bruce & Ross, 2009;Muhamad, 2017). Mathematical learning strategies in the 4.0 era focus on e-learning and blended learning (Karmakar & Nath, 2014;Mulqueeny, Kostyuk, Baker, & Ocumpaugh, 2015;Praherdhiono et al, 2019;Setyaningsih, Abdullah, Prihantoro, & Hustinawaty, 2019). E-learning learning is more flexible (Batalla-Busquets & Pacheco-Bernal, 2013;Jethro, Grace, & Thomas, 2012), can foster student knowledge (Fitri, Ifdil, & Neviyarni, 2016;Goldie, 2016), and foster performance academic.…”