Use the red and blue sliders below to perform integer addition.
Use the green and pink sliders below to perform integer subtraction.

The blue slider represents the first integer and the red slider represents the second integer in the addition problem. You can see the two numbers being added displayed above the number line as well as the addition of these two integers using rays. The purple dot represents the sum.
The green slider represents the first integer and the pink slider represents the second integer in the subtraction problem. You can see the two numbers being subtracted displayed below the number line as well as the subtraction of these two integers using rays. The orange dot represents the difference.