Solve: (-30) + (-2) + 30 + (-5) Step by Step

First, let's organize the exercise in a way that will make it easier and more convenient to solve.

Notice that the number 30 appears twice in the exercise, so let's start with it:

$(-30)+30+(-2)+(-5)=$

Let's look at the exercise:

$-30+30$

Since we move left from zero to minus 30, and then return right 30 steps, we will arrive at the same number we started from: 0

Now let's continue the exercise in the following way:

$0+(-2)+(-5)=$

We'll locate the number minus 2 on the number line, and move left five steps where each step represents one whole number:

We can see that we arrived at minus 7.