Solve 3 + (-4): Using Number Line to Add Negative Numbers

Question

Solve the following problem using the number line below:

$3+(-4)=$

00:00 Solve

00:03 The number is directed, positive

00:07 Movement to the positive side of the axis is to the right

00:10 Therefore, from point 0 we'll take 3 jumps to the right

00:14 The number is directed, negative

00:18 Movement to the negative side of the axis is to the left

00:22 We'll take 4 jumps to the left

00:28 And this is the solution to the question

We will locate the number 3 on the number line, then move 4 steps to the left from it (since minus 4 is less than zero):

We can see that we have reached the number minus 1.

$-1$