Bài 5: Introducing the kilometer

Starry, do you remember that we use the unit centimeter and millimeter for smaller distances?

But do you know how to measure distances that are really long?

Seeing distances between your house and the school or the distances between two cites.

You must know that although a meter is a greater unit than centimeter,

we cannot use unit “meter” to measure such long distances.

For this we have another bigger unit that is kilometer.

1 kilometer equals 1000 meters. Kilometer can be written in short as km.

Now let’s learn how to convert kilometers to meters.

Let’s convert 2 kilometers into meters.

Now 1km equals 1000m

So 2km equals 1000 into 2

With is 2000

So 2km equals 2000m

Q: Convert 6 kilometers into meters.

Ans: 1km equals 1000m

6km equals 1000 into 6

With is 6000m

So 6 kilometers equals 6000 meters.

Let’s provide what we have learn.

Q: Convert 9 kilometers into meters

Ans: 1km equals 1000m

9km equals 1000 into 9

With is 9000m

So 9 kilometers equals 9000 meters.

Let’s solve another example.

Q: convert 3 kilometers into meters.

Ans: 1km equals 1000m

3km equals 1000 into 3

With is 3000m

So 3 kilometers equals 3000 meters.

Very good! So you must remember that for smaller distances we use the unit centimeters and meters.

But for longer distances we use the unit kilometer.