Uploaded December 2023 | Updated September 2026, 1 week ago

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12 Days of Curtsmas Chapter 1: Addition and subtraction.

This is a Curta Type I, built in 1952. Stay tuned for episodes every other day, December 3 - 25. Thanks as always to the person who gave me the Curta.

Chapter 11 (December 23) will be a mailbag episode! So please ask questions, etc.

End song inspired by "Hotter than a Molotov" by The Coup. youtu.be/X8AW7PmsxAY

Jingle bells sound from http://www.freesoundslibrary.com, CC-BY-4.0