Adding & Subtracting Negative Numbers
- Jon Rubin
1.) Using the slider, move the first number, a, to the left or right. 2.) Using the slider, move the second number, b, to the left or right. 3.) To look only at addition OR subtraction, check the box you want on or off.
1.) Are there any patterns that you notice? 2.) Use this, instead of a calculator to check your work.