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

Question

$-30+30=$

00:00 Solve

00:05 The number is directed, and negative

00:09 The negative direction on the axis is left, so we'll take 30 to the left

00:25 The number is directed, and positive

00:31 The positive direction on the axis is right, so we'll take 30 to the right

00:39 And we returned to point 0

00:45 And this is the solution to the question

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.

$0$