Percent Review

Front

What is the formula to calculate a percentage?

Back

Percentage = (Part / Whole) x 100

Front

What is 14% of 80?

Back

11.2

Front

If 80 is 40% of a number, how do you find that number?

Back

Number = Part / (Percentage / 100) = 80 / (40 / 100) = 200

Front

How do you calculate the percentage of correct answers on a test?

Back

Percentage Correct = (Number of Correct Answers / Total Questions) x 100

Front

Greg answered 9 out of 12 questions correctly. What percent did he score?

Back

75%

Front

Sally got 22 questions wrong on her quiz of 40 questions. What is the percentage of questions she got wrong?

Back

Percentage Wrong = (Wrong Answers / Total Questions) x 100 = (22 / 40) x 100 = 55%.

Front

What is 29 out of 50 as a percentage?

Back

58%.

Front

How do you convert a fraction to a percentage?

Back

Multiply the fraction by 100.

Front

What does it mean if a number is 25% of another number?

Back

It means that the first number is one-fourth of the second number.

Front

If you increase a number by 20%, what is the new number?

Back

New Number = Original Number + (20% of Original Number).