The application "Calculator Notes" is an application that calculates the grade on the grading scale 1.0 to 7.0, for different maximum and different levels of demand for "Performance Standard Minimum Acceptable" (PREMA) for note 4.0 scores, usually applied in Chilean schools.Forget lugging folders Weighted forms, illegible leaves or apply complicated mathematical formulas. In you application. Select the highest test score (for note 7.0), the level of demand PREMA applied (50% to 70%), and with a finger can slide the selection bar to see the corresponding notes to each score all in the comfort of your Android SmartPhone:• Quick display of qualifying with one more point and one less than the selected score.• Quick display of qualifying for other scales PREMA (bottom).This application is ideal for teachers, parents and students who want to have a comfortable, practical and reliable tool.The application allows you to select assessments total score between 3-100 points under PREMA: 50%, 55%, 60%, 65% and 70%.