Solve the Addition Problem: -30 + 30 Step by Step

Let's locate negative 30 on the number line.

Since negative 30 is less than 0, we'll move thirty steps to the left of zero, where each step represents one whole number as follows:

Now let's look at the operation in the exercise, since the operation is $+30$

And since 30 is greater than 0, we'll move thirty steps to the right from negative 30, where each step represents one whole number as follows:

We can see that the number we reached is 0.