Percentages

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

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 20% of 50, calculate 50 * 0.20 = 10.

Front

What is 40% of 150?

Back

60

Front

What is 10% of 80?

Back

8

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 14% becomes 0.14.

Front

What is 25% of 200?

Back

50

Front

If 40% of a class of 50 students are girls, how many girls are there?

Back

20 girls

Front

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

Back

Percentage = (Part/Whole) * 100.

Front

What is 2.5% of 400?

Back

10

Front

How do you find what percent one number is of another?

Back

To find what percent one number is of another, use the formula: (Part/Whole) * 100.