National Council of Teachers of Mathematics
The Math Forum: Calculating Sales Tax
Dr. Math is asked about calculating sales tax. A quick and easy to follow explanation of how it works using fractions, decimals, ratio, and percent.
Calculator Soup
Calculator Soup: Sales Tax Calculator
Calculate a simple single sales tax and a total based on the entered tax percentage.
CK-12 Foundation
Ck 12: Arithmetic: Prices Involving Sales Tax
[Free Registration/Login may be required to access all resource tools.] Have you ever had to calculate a tip in a restaurant? Figure out the amount with taxes and estimate appropriate tips.
CK-12 Foundation
Ck 12: Arithmetic: Total Bill Including Tip and Tax
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate total bills including tips and taxes. Students examine guided notes, review guided practice, watch instructional videos and attempt...