Exit number

Imagine you're driving down a big road, and you see a sign that says "Exit 5". That means that in 5 miles, you will see another sign that tells you which way to turn to get off the big road and onto a smaller road.

Exit numbers are like little maps that help you find where you're going. They tell you how far away you are from turning off the big road, and they help you remember which exit you need to take.

Just like how each house on your street has a number, each exit on a big road has a number too. So, if you need to meet someone at "Exit 5", you can tell them to go there and they will know exactly where to meet you.

So, exit numbers are just markers that help us figure out where we are and where we need to go on a big road.