“…Table 3 shows that the most studied area is numbers (Durkin & Rittle-Johnson, 2015;Lin, 2016;Yang & Lin, 2015;Makonye & Faculty, 2016;Alghazo & Alghazo, 2017), and fractions (Dhlamini & Kibirige., 2014;Uzel, 2018;Aliustaoglu, Tuna & Biber, 2018;Sarwadi, & Shahrill, 2014;Trivena, Ningsih & Jupri, 2017) with a total of 5 articles for each respective area. Other areas being focused on are limit (Kula & Guzel, 2014;Winarso, 2017;Denbel, 2014), geometry (Ozkan & Bal, 2017;Luneta, 2015), functions (Oçal, 2017), integers (Fadillah & Susiaty, 2019), number theory (Stavrou, 2014), algebra (Lin & Kuo, 2014;Gningue, Menil, & Fuchs, 2014;Sarımanoğlu , 2019;Tiwari & Fatima, 2019), integrals (Li, Julihi, & Eng 2017), differential equations (Ming, Foong & Ng, 2017), quadrilateral (Turnuklu, 2014, and probability (Ang & Shahrill, 2014).…”