Calculating Tips and Taxes

To determine costs by calculating tax, tip, and commission

To learn about fractions

To understand basic arithmetic

To explore geometry concepts

As a fixed amount added to the purchase price

As a percentage of the total items

As a percentage of the purchase price

As a discount on the purchase price

Round to the nearest dollar

Multiply the original cost by the tax rate

Convert the percentage to a decimal

Add the tax to the original cost

8.25%

5%

7.5%

10%

$80.10

$82.00

$80.00

$81.10

18%

15%

25%

20%

$9.00

$10.00

$9.60

$8.60

$59.60

$56.60

$58.00

$57.60

A discount on products

A tax on sales

A percentage of sales given to a salesperson

A fixed salary for salespeople

5%

6%

3%

4%