“…Mathematical representation is a way to show a condition using a mathematical model (Park & Choi, 2013;Purwadi, Sudiarta & Suparta, 2019). It is used to observe prediction and assumption of a problem using reasoning skill so that the students can understand, make, and evaluate assumptions and arguments mathematically and systematically (Cartrette & Bodner, 2010;Nor'ain Mohd & Chinnappan, 2016;Doran, 2017). In general, mathematical representation takes the form of equation and formula (Namdar & Shen, 2017) and the combination of mathematical symbols and structure which use numbers, variables, and equation (Jaccard & Jacoby, 2010;Priyadi, Kuswanto & Sumarna, 2020).…”