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  1. Academic grading in the United States - Wikipedia

  2. Letter Grading Scale for U.S. Colleges and High Schools

  3. College Grading Scale in The U.S - Grade Calculator

  4. United States Grade Scale - Grade Calculator

  5. GPA Scale - GPA Calculator

  6. Grade Calculator

  7. Grade Range and Definitions - Loyola Marymount University

  8. American Grading System: From GPA to Letter Grades

  9. Grade Scales: GPA, Letter Grades, and Global Systems Guide

  10. Grade-Scale - Explore the US Grade Scale: A Detailed Guide