Percents!

Front

What is a percent?

Back

A percent is a way to express a number as a fraction of 100. It is often used to compare quantities.

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 30% of 90, calculate 90 * 0.30 = 27.

Front

What is the formula to find the percentage score on a test?

Back

Percentage score = (Number of correct answers / Total number of questions) * 100.

Front

If you have 25% of a pizza left, how much is that if the pizza was originally 12 slices?

Back

25% of 12 slices = 12 * 0.25 = 3 slices.

Front

What does it mean to increase a number by a percentage?

Back

To increase a number by a percentage, calculate the percentage of the number and then add it to the original number.

Front

What does it mean to decrease a number by a percentage?

Back

To decrease a number by a percentage, calculate the percentage of the number and then subtract it from the original number.

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 then multiply by 100.

Front

What is 50% of $148?

Back

50% of $148 = 148 * 0.50 = $74.

Front

If a team wins 17 out of 25 games, what is their win percentage?

Back

Win percentage = (17 / 25) * 100 = 68%.

Front

What is the relationship between decimals and percents?

Back

Decimals can be converted to percents by multiplying by 100. For example, 0.75 = 75%.