Math Is Fun
Math Is Fun: Compound Interest Formula Derivations
Looks at how the formula for calculating the effect of compound interest is derived and how it is used to create formulas for finding the Future Value, the Present Value, the Interest Rate, and the Number of Periods. Includes lots of...
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Compound Interest
Find a quick, concise explanation of Compound Interest. Examples are given and clearly explained using both the Yearly Compound Interest Formula and General Compound Interest Formula.
Math Is Fun
Math Is Fun: Compound Interest
Explains, with examples, what compound interest is and how to calculate it using a formula. Also shows how to work backwards to calculate the present value of an investment, how compound interest is calculated for different compounding...
Cuemath
Cuemath: Compound Interest
A comprehensive guide for learning all about compound interest with definitions, formulas, solved examples, and practice questions.
Cool Math
Coolmath: Compound Interest
This algebra lesson explains how compound interest works and where the formula comes from.
Department of Defense
Do Dea: Compound Interest
The compound interest formula that banks use when the interest is compounded continually is an exponential function. Review the regular formula for compound interest on this site. Great review for the AP Calculus test!
Calculator Soup
Calculator Soup: Compound Interest Calculator
Calculate compound interest on an investment or savings. Using the compound interest formula, calculate principal plus interest or principal or rate or time.
Other
Finra Investor Education Foundation: Introduction to Earning Interest 11 & 12
Students will know and be able to use the formula for calculating compound interest and understand the effect of compounding on savings in this lesson plan.
Mocomi & Anibrain Digital Technologies
Mocomi: Simple Interest and Compound Interest
Explains simple and compound interest with formulas and examples.
Cuemath
Cuemath: Simple Interest
A comprehensive guide for learning all about simple interest with definitions, simple interest formula, loans, solved examples, and practice questions.
Texas Instruments
Texas Instruments: That's Interesting!
In this activity, students compare simple and compound interest in graph form. By doing this students will gain insight into interest and interest formulas, exponential and linear growth, and real world investment strategies.
Texas Instruments
Texas Instruments: Growth and Decay Formulas
In this question set, students use exponential growth and decay functions to solve problems about compound interest, population growth, investments, and half-life. Solutions and explanations are provided for these problems.
Other
Sierra College: Elementary Algebra Review Sheet and Common Formulas
This review sheet includes important rules, properties, formulas, and equations needed to solve many Algebra problems.
Other
Nearpod: Exponential Functions
For this lesson, students will use the exponential function equation to solve real-life problems involving exponential growth and decay including the compound interest formula.
Free Math Help
Free Math Help: Compound Interest
The lesson examines compound interest. The tutorial consists of a future value formula, example, and additional resources.
Other
Brown Math: Loan and Investment Formulas
This site is provided for by the Oak Roads Systems. Compound interest can work either for or against you whether you're taking out a loan or making an investment. Either way, the set of formulas for interest is the same and they are...
Wolfram Research
Wolfram Math World: Compound Interest
This MathWorld site gives formulas involved in computing compound interest variables are fairly well defined at this site. If you scroll to the bottom of the page you will find a formula to find the time involved for the principle to...
Windstream
Ojk's Precalculus Study Page: The Number E and the Function E^x
An introduction to the natural exponential function, beginning with the limit definition of the irrational number e. Includes several examples and exercises with solutions which deal with the compound interest formula.
Free Math Help
Free Math Help: Future Value
The tutorial examines future value. The lesson consists of a compound interest formula, continuously compounded interest formula, and a future value calculator.
Cool Math
Coolmath: Continuous Compounding
Check out this example of a continuous compounding formula.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Math Is Fun
Math Is Fun: E (Euler's Number)
Explains what Euler's Number is, its significance, and the formula used to calculate this irrational number. Gives memory tricks for remembering the value of e to 10 or 15 decimal places. Looks at some interesting properties of e and how...
Khan Academy
Khan: Lsn 8: Interpreting Relationships in Scatterplots/graphs/tables/equations
This lesson focuses on Interpreting and analyzing linear, quadratic, and exponential models and graphs. Students will use best fit lines to interpret contexts, distinguish whether contexts are linear or exponential functions, use the...