For primary school level, a score of 65/100 is good enough to pass, while in high school and further levels the pass grade is 70/100. Students who attain between 60 and the passing grade get the chance to take an extra test that reviews the whole year's curriculum, and in which a 70 is needed to achieve a pass grade.
Often high schools will raise the pass grade to 75 in order to push their students to achieve a higher grade. This only applies to the highest high school grades, which are 10th and 11th grade. This method is primarily focused on improving grades by encouraging a higher cumulative grade point average throughout both years, leading towards a set of final exams in which this average grade becomes critically important.