Percent of a Number

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 percent of a number?

Back

To calculate a percent of a number, multiply the number by the percent (in decimal form). For example, to find 20% of 50, calculate 50 x 0.20 = 10.

Front

What does '40% off' mean?

Back

'40% off' means that 40% of the original price is deducted from the total price.

Front

If a jacket costs $25 and is 40% off, how much is the discount?

Back

The discount is $10.00 (40% of $25 is $10).

Front

What is the final price of a $25 jacket after a 40% discount?

Back

The final price is $15.00 ($25 - $10 = $15).

Front

What is 122% of 42?

Back

122% of 42 is 51.24.

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 15% becomes 0.15.

Front

What is 15% of 82?

Back

15% of 82 is 12.3.

Front

If 35% of students did not go to the movies, how do you find the number of students who did not go?

Back

Multiply the total number of students by 0.35. For 80 students, 80 x 0.35 = 28.

Front

What is 90% of 250?

Back

90% of 250 is 225.