Percent of a Number

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 ratios.

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 is 50% of a number?

Back

50% of a number is half of that number. For example, 50% of 80 is 40.

Front

What does it mean if 30% of a class passed a test?

Back

It means that 30 out of every 100 students in the class passed the test.

Front

If 60% of 100 is 60, what is 40% of 100?

Back

40% of 100 is 40, because 100 - 60 = 40.

Front

How do you find what number a percent represents?

Back

To find what number a percent represents, divide the part by the percent (in decimal form). For example, if 30 is 60% of a number, the number is 30 / 0.60 = 50.

Front

What is 10% of 200?

Back

10% of 200 is 20, calculated as 200 x 0.10.

Front

If 25% of a number is 15, what is the number?

Back

The number is 60, calculated as 15 / 0.25.

Front

What is the formula to find the percent of a number?

Back

The formula is: Percent = (Part / Whole) x 100.

Front

If there are 200 jellybeans and 40% are red, how many are red?

Back

There are 80 red jellybeans, calculated as 200 x 0.40.