Grade (education)
are a teacher's evaluation of a student's performance. They are often letters (e.g. A, B, C, D, F,) or numbers (e.g. 1-10.), although in some countries they do not use either of these systems.
Grades
Letter grades are most commonly used in the United States and some others.[1] The grades D or C are usually enough to pass.
Grades can also be on a number scale. Typically a midpoint score is a pass. Sometimes the numbers can go in descending order to indicate better performance.
A Grade Point Average, or GPA, takes the grade(s) of a student and assigns point values to them. These points are added up and divided to calculate the GPA.
Simple grades can be found with this formula:
The grade is the answer to that formula turned into a percent.
This is the type of grading the United States commonly uses.:[2]
| Percent | Grade | 
|---|---|
| 97%-100% | A+ | 
| 93%-96% | A | 
| 90%-92% | A- | 
| 87%-89% | B+ | 
| 83%-86% | B | 
| 80%-82% | B- | 
| 77%-79% | C+ | 
| 73%-76% | C | 
| 70%-72% | C- | 
| 67%-69% | D+ | 
| 63%-66% | D | 
| 60%-62% | D- | 
| 0%-59% | F | 
References
    
- Educational Grading. 2009, Art of Academics.
 - "Grade Chart". msu.edu. Retrieved February 18, 2018.