How to Figure Out Grade Percentages

Figuring grades is easier with a a grading scale.

If you decide to home school your children but you aren't a teacher, then trying to figure out grade percentages and corresponding letter grades may have you a bit baffled. Just because you aren't quite sure how to go about this task doesn't mean that your children have to go without any measure of how well they are grasping the concepts you are teaching them.

Instructions

1. Count up the number of questions that appear on a homework assignment or test if each question is worth the same point value. If the questions have different point values, such as essay questions worth more than true or false questions, then add up the total number of points available on the homework assignment or test.

2. Correct the homework assignment or test.

3. Add the number of questions or points missed and subtract that number from the number of questions or points available.

4. Divide the number that you got in Step 3 by the number you got in Step 1.

5. Multiply the number you got in Step 4 by 100 to get the grade percentage of that particular homework assignment or test.

6. Assign a corresponding letter grade to the grade percentage that you got in Step 5 by using the typical grading scale. Using the typical grading scale is an easy way of letting your child know which grades are acceptable and which are not. For example, you may think that an A or a B on any given assignment or test is acceptable because both of these grades are above average, which would be a C. Below is the typical grading scale.

   90-100 percent: A

   80-89 percent: B

   70-79 percent: C

   60-69 percent: D

   59 percent and below: F

Tips & Warnings

• If you offer extra credit on a test or assignment and your child earns those points, then simply add them to the number you get in Step 3 and proceed through the rest of the steps.