Percent of a Number

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you calculate the percent of a number?

Back

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

Front

What is the formula to find the percent correct on a test?

Back

The formula is: (Number of correct answers / Total number of questions) x 100.

Front

If a student answers 15 out of 20 questions correctly, what percent did they get right?

Back

75% (calculated as (15/20) x 100).

Front

What is 40% of 200?

Back

80 (calculated as 200 * 0.40).

Front

If a jacket costs $50 and is on sale for 20% off, what is the sale price?

Back

$40 (calculated as $50 - ($50 * 0.20)).

Front

What does it mean if 60% of a class passed a test?

Back

It means that 60 out of every 100 students in the class passed the test.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the top number (numerator) by the bottom number (denominator) and then multiply by 100.

Front

What is 10% of 500?

Back

50 (calculated as 500 * 0.10).

Front

If a store has a sale of 25% off, how much will a $40 item cost after the discount?

Back

$30 (calculated as $40 - ($40 * 0.25)).