Addimult Mechanical Calculator

Something slightly different today: I bought a simple mechanical calculator! Fun little thing. I thought you folks might like to know how it can be used. Don't worry, my next video will be another typewriter video =). And yes, I probably should have used a "100" factor instead of "90" in the first bit of the division example, but that's not in the "fancy" tables =S Link to the Dutch manual for basic adding and substracting operations: https://www.manua.ls/addimult/sumax-s... Chapters: 00:00 Intro on the Addimult(s) 00:32 Basics on how to use it 00:53 A short tour of the device and stylus 02:13 Adding numbers 02:56 Substracting numbers 03:38 The rest lever 03:52 Tables that enable multiplication and division 05:34 Multiplication 06:27 Division 08:37 Difference between "Saldor" and "Summator"