Simple Percents Practice

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 25% of 640, calculate 640 * 0.25.

Front

What is 25% of 640?

Back

160

Front

If a student answers 80% of 20 problems correctly, how many problems did they answer correctly?

Back

16 problems

Front

What is the formula to find the original price if you know the sale price and the percent discount?

Back

Original Price = Sale Price / (1 - Discount Rate) where Discount Rate is in decimal form.

Front

Manuel bought a car for 65% of the original price of $7200. How much did he pay?

Back

$4680

Front

What is 12% of 40?

Back

4.8

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

What is 28.5 as a percent of 20?

Back

142.5%.

Front

What does it mean if a student scores 80% on a test?

Back

It means the student answered 80 out of 100 questions correctly, or 80 out of the total number of questions on the test.