Today we are looking at equivalent lengths again but this time we are looking at centimeters and millimeters.
Here is a video to help you for today - https://vimeo.com/467395290
If you have a ruler at home - have a go measuring your reading book.
What is it in cm (centimetres) and mm (millimeters) ?
Something extra -
If you can, find some objects in your house (make sure to ask beforehand!) and measure these in cm and mm (such as 17cm and 1mm) and millimeters (171mm).