An Example of Subtraction of Negative Numbers

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
A puzzling issue for educators in elementary education is how to explain arithmetic operations between negative numbers: why, for example, subtracting a negative number is the same as adding a positive number or why the product of two negatives gives a positive. A related problem is to find good examples in which these operations appear in the "real world" and that students find sensible.
[more]
Contributed by: Enrique Zeleny (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
detailSectionParagraphPermanent Citation
"An Example of Subtraction of Negative Numbers"
http://demonstrations.wolfram.com/AnExampleOfSubtractionOfNegativeNumbers/
Wolfram Demonstrations Project
Published: March 7 2011