If you already know how to add integers, you're only one step away from knowing how to subtract. Scholars learn to subtract integers using multiple methods. First, the brief YouTube video describes how to subtract integers by adding the...

Introduce young economists to the concept of return on assets with this clip, which begins with an overview of various theories on calculating ROA. Sal writes out four formulas and explains why he uses the last one: EBIT divided by...

[Free Registration/Login may be required to access all resource tools.] A video showing how to add and subtract money amounts up to $10. [2:45]

In this lesson, students will add and subtract money values.

In this video, students are shown how to add and subtract negative fractions and decimals. This is followed by an example problem that looks at negative and positive money amounts related to a bank account. [7:09]

This video shows how to add positive and negative money amounts in the context of a word problem using a number line. Practice problems are available. [3:15]