Solve 10 + (-12): Integer Addition on a Number Line

Question

Solve the following problem using the number line below:

$10+(-12)=$

00:00 Solve

00:03 The number is directed, positive

00:06 Movement towards the positive side of the axis is to the right

00:09 Therefore, from point 0 we'll take 10 jumps to the right

00:19 The number is directed, negative

00:23 Movement towards the negative side of the axis is to the left

00:27 We'll take 12 jumps to the left

00:37 And this is the solution to the question

We will locate the number 10 on the number line, then move 12 steps to the left from it (since minus 12 is less than zero):

We can see that we have reached the number minus 2.

$-2$