The aim of study focused in identify if there are a set of variables that explain the level of anxiety towards mathematics in Telebachillerato students. For this, the test designed by Muñoz and Mato-Vázquez (2007) was used. The test comprises by 24 items with 5 dimensions. In order to get data, were surveyed 201 regular students enrolled in the academic year 2018. The reliability and internal consistency of the instrument is a= 0.7921 in this study. The main findings show that the level of anxiety towards mathematics in the students is generated into the institution because the evaluations and their temporality are given precisely in the classrooms where numbers and mathematical operations are study.