Adding and Subtracting Integers

Why is 5 - (-2) = 7 ??


Rules (written)

Online Applets

Online Games

Online Practice

Technical Notes

  1. The video files are .wmv (windows media video) files. On a PC the video should show automatically in your default video player (e.g., Window Media Player, Real Player, etc.).

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James R. Olsen, Ph.D. ~ Western Illinois University
updated: September 29, 2013 11:32 PM