DO: Percents of Numbers

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 values.

Front

How do you calculate 10% of a number?

Back

To calculate 10% of a number, multiply the number by 0.10.

Front

What is 25% of $100?

Back

$25

Front

How do you find 15% of a total amount?

Back

To find 15% of a total amount, multiply the total by 0.15.

Front

What is 5% of 200?

Back

$10

Front

How do you calculate a discount?

Back

To calculate a discount, multiply the original price by the discount percentage (as a decimal) and subtract that from the original price.

Front

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

Back

$40

Front

What is the formula to find the total cost after adding a tip?

Back

Total Cost = Original Bill + (Tip Percentage x Original Bill)