30 - 5 = 25 correct answers.
25/30 x 100 = 83% (rounded to a whole number)
10 - 3 = 7 7 / 10 = .7 = 70%
Since there are 2/10 problems that are missed, there are 8/10 problems that are correct. 8/10 is 0.8 which is equal to 80%.
Let's say you want to calculate the grade by simply turning it into a raw percentage (and not factoring in anything like that some questions might be worth more or some mistakes might be worth less than just knocking off all points for the problem). We'll make x% be the percentage that you got right. To calculate x% do: (30-11)/30=19/30=63.333...% You can round to 63%.
First you find out how many you got right by subtracting how many you got wrong from the total. So, 95-18 = 77 Then you divide the number correct by the total, so 77/95, which is about 81.1% Then you apply the grading scale. In most cases, an 81.1% would be a low B.
A test score of "90" represents the percentage of correct questions. Multiply this percentage by the total number of questions and you will have the number of questions correctly answered. Subtract this from the total to find answers wrong. 90% of 40 questions = .90 x 40 = 36 questions right. 40-36 = 4 answers wrong.
71 percent
17/19 = 89% = B+
If you got 20 problems wrong on a 75 question test your grade would be 73% or a C. You can find that by subtracting the amount of questions you got wrong from the amount you got right, 55 in this case. Divide the amount of correct questions by the amount of questions on the test to get .733333. That is the grade.
10 - 3 = 7 7 / 10 = .7 = 70%
68 right out of 79 is 86 percent. Sounds like a "B."
You use division. For example 13/47 is approximately 0.276 or 28%. 100-28 is 72 so the grade would be a 72.
65
It is a test where you find out your GPA (Grade Point Average)
77% or C+
First, you convert them to 100. 4/20=16/100 The subtract 16 out of 100. 100-16=84
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where can i find sample questions for national achievement tests for grade 3