Use the sliders below to perform integer addition.
The blue slider represents the first number in the addition problem and the red one represent the second. You can see the two numbers that you are adding displayed above the number line. Below the number line, you can see the addition of these two numbers being performed. The purple dot shows the sum of the two integers.
What is the sum of two negative integers?
The sum of two positive integers is positive.
How do we add integers with different signs?