68 72 8 * 90

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How   to   Calculate   Grades   Example  

A)   How   to   calculate   an   average   before   all   grades   are   filled   in.

 

Percentage of Grade

Student’s Score

Test 1

Test 2

Test 3

Test 4

12%

12%

68

72

12%

12%

Quiz Average

Homework

12%

10%

8 *

90

Final Exam (Comprehensive)

30%

100%

1)   Multiply   each   score   (as   if   it   were   out   of   100)   by   its   percentage.

 

68   x   .12

  =   8.16

      

72   x   .12

  =   8.64

 

80   x   .12

  =   9.6

   *(

The   grade   you   have   is   most   likely   out   of   10,   so   multiply   by   10   to   figure   what   it   would   have   been   out   of   100.)  

90   x   .10

  =   9  

2)   Add   all   numbers   from   #1.

 

8.16

  +   8.64

  +   9.6

  +   9   =   35.4

 

3)   Add   all   percentages   you   have   a   grade   for.

 

12   +   12   +   12   +   10   =   46  

4)   Divide   #2   by   #3.

  Then   move   the   decimal   2   places   to   the   right.

 

35.4

  /   46   =   .76956

    76.956

  is   the   average.

 

B)   How   to   calculate   a   grade   when   all   grades   are   filled   in.

 

Use   steps   1   &   2   above.

  The   total   of   the   points   in   step   2   is   your   grade   out   of   100   possible   points.

 

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