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In this video for primary school, children learn how to calculate lengths when both lengths have different units. It is always a good idea to convert the larger unit of length into the smaller unit. Video Converting lengths: • Converting lengths: Explanation for children Free worksheets Calculating with lengths: https://www.nachhilfevomlehrer.de/mat... Playlist German: • German Playlist Math: • Math For parents who want to support my project: http://www.nachhilfevomlehrer.de/dank... 00:00 Intro 00:20 What you will learn in this video 01:05 Step-by-step conversion of lengths 02:53 More examples 04:31 Exercise 06:48 Links to free worksheets