Khan Academy: Adding in Binary

Sal demonstrates adding and subtracting rational expressions with like denominators. [3:44]

Adding and subtracting polynomials is all about combining like terms. In this article, we review some examples and give you a chance for you to practice the skill yourself.

In this seven-problem quiz/practice, students understand how subdivision works with an object in three dimensions.

A discussion of asymptotic notation in relation to the rate of growth of an algorithm's running time.

Practice what you have learned about how changes in the demand for money and/or the money supply affect the nominal interest rate in this seven-problem exercise.

The sequel to Polar Coordinates 1 from the Khan Academy, this segment goes through some examples on converting polar coordinates to rectangular coordinates and converting a Cartesian equation to a polar equation. Graphing is also used to...

This video follows from Khan Academy: Sequences and Series (Part 1) and furthers the idea of the basic geometric series. Explains how to find the sum of both a finite and an infinite geometric series. Uses limits to find the sum of an...

Another segment in the series on compound interest and the number e from the Khan Academy. This video begins to derive the formula for interest compounded continuously (A=Pe^rt). Limits are employed to show that the limit of the interest...

The last video in a three-part series on the Binomial Theorem from the Khan Academy. This segment illustrates how the Binomial Theorem is directly related to combinatorics using (a + b)^3 as an example. Students can clearly see how a...

The third video in the Khan Academy's series on Polar Coordinates. This final segment goes through several more examples of converting Cartesian equations to polar equations and vice versa. This video is also included in the Trigonometry...