Videos: Units of Length

What is a centimeter?
(有時候也會看見英式英語的拼法centimetre)/

說說看
The jelly bean is longer than 1 cm.

The ant is shorter than 1 cm.

Understanding mm, cm, m and km

跟著影片認識這些單位並練習選出適當的單位吧

Let's measure in cm and mm.

How many millimeters are in 1 centimeter?

There are 10 mm in 1 cm.

So, how many mm are in 4 cm?