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How to Calculate Your Grade 

The grade is divided into four components:  homework, classwork, tests, and the final exam.  Within each component, individual papers are graded on a 100 point scale. 

An average grade for each of the components is calculated from the papers in the component. 

The final grade average for the quarter is calculated by taking a weighted sum of the four components.  The formula is: .10xClasswork Grade + .30xHomework Grade + .30xTest grade + .30xFinal Exam Grade = Final Quarter Average. 

The final quarter average is then converted to a decimal final grade using the grade table.  The grade table is shown below. 

Grade Average

Decimal Grade

Grade Average

Decimal Grade

89.5-100

4.0

72.5-73.5

2.3

88.5-89.5

3.9

71.5-72.5

2.2

87.5-88.5

3.8

70.5-71.5

2.1

86.5-87.5

3.7

69.5-70.5

2.0

85.5-86.5

3.6

68.5-69.5

1.9

84.5-85.5

3.5

67.5-68.8

1.8

83.5-84.5

3.4

66.5-67.5

1.7

82.5-83.5

3.3

65.5-66.5

1.6

81.5-82.5

3.2

64.5-65.5

1.5

80.5-81.5

3.1

63.5-64.5

1.4

79.5-80.5

3.0

62.5-63.5

1.3

78.5-79.5

2.9

61.5-62.5

1.2

77.5-78.5

2.8

60.5-61.5

1.1

76.5-77.5

2.7

59.5-60.5

1.0

75.5-76.5

2.6

58-59.5

0.9

75.5-75.5

2.5

56.5-58

0.8

73.5-74.5

2.4

55-56.5

0.7

 

0.0-55

0.0

 Example 1.  Suppose a person got the following component averages:  Classwork 90, Homework 88, Tests 75, and Final Exam 68.  What would be the final decimal grade? 

The final grade average would be .  From the grade table, a 78.3 final grade average translates to a decimal grade of 2.8.

Example 2.  Suppose a person had component grade averages of Classwork 85, Homework 87, and Tests 86, and wanted to calculate what grade would be necessary on the final exam to get a decimal grade of 4.0 for the class.

 The formula to use is

 In the example, a decimal grade of 4.0 shows on the table a final grade average of 90.  Plugging the numbers into the formula: 

  

A final exam grade of 98.7 would be required to get a 4.0 for the quarter decimal grade.