Numbers Can be Positive or Negative: ... Subtracting positive numbers is just simple subtraction. ... Subtracting a Negative is the same as Adding ... www.mathsisfun.com |
Use the number line for adding and subtracting integers: Add a positive integer by moving to the right on the number line; Add a negative integer by moving to ... www.math.com |
Jan 9, 2009 ... This lesson teaches a method for adding and subtracting positive and negative numbers. (Other than the number-line method) www.youtube.com |