NumberNut
Number Nut: Subtraction: Two Digit Subtraction With Negatives
A quiz for practicing subtraction of two-digit numbers where some of the answers may be negative numbers.
NumberNut
Number Nut: Subtraction: Single Digit Subtraction
A quiz for practicing subtraction of one-digit numbers where some of the answers may be negative numbers.
PBS
Pbs Learning Media: Cyberchase: Competing for the Northern Hemisphere Games
In this short Cyberchase video, students learn about positive and negative numbers as Harry tries to score a total of 50 points in various events to qualify for the Northern Hemisphere games in New Orleans. [3:24]
Fun Brain
Fun Brain: Line Jumper (Number Line Game)
Practice adding and subtracting positive and negative numbers by using a number line. Five levels of difficulty--easy, medium, hard, really hard, and super brain--to test your skills.