sentences:  At this level, the minimum passing grade is still 70, but students are required to obtain a minimum grade of 80 to be awarded their postgraduate degree.Also, a score of 80 may be required to maintain other benefits such as a federal scholarship.Due to influence of North American television shows and media, the common US grading system that uses letters is understood in Mexico, and a rough equivalence can be made to the Mexican system, specially when television shows are localized for the Mexican audience.