Percentages Application Flashcard

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 30% of 200, calculate 200 x 0.30 = 60.

Front

What does '30% off' mean?

Back

'30% off' means that the price is reduced by 30% of its original price. For example, if an item costs $100, a 30% discount means you pay $70.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and then multiply by 100. For example, 1/4 = 0.25 x 100 = 25%.

Front

What is 25% of 80?

Back

20

Front

What is 45% of 200?

Back

90

Front

If 1/4 of the class turned in their projects early, and there are 20 students in the class, how many turned their projects in early?

Back

5

Front

What is 0.75 as a percentage?

Back

75%.

Front

How do you find the sale price after a discount?

Back

To find the sale price after a discount, subtract the discount amount from the original price. For example, if a coat costs $78 and is 30% off, the discount is $23.40, so the sale price is $54.60.

Front

What is the formula for calculating the discount amount?

Back

Discount Amount = Original Price x (Discount Percentage in decimal form).