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Base Five, Abacus, Soroban, そろばん, Suan Pan, 算盘

Creation quality: 5.0/5 (1 vote)
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3D model description

Base Five is a worthwhile number system to play with: to understand how positional number systems work and to explore alternative number representations (called numerals in a strict sense). In computer science, bases 2, 8, 16 are definitely required. In K-12 education, base five has pedagogical values. One could make an addition or multiplication table just to see how things work.

As expected, in a base five system, we need five symbols: 0, 1, 2, 3, 4. The base five abacus can be used for base five representations and operations or just as a math toy!

3D printing settings






.1 to .2mm



Try to count on the base five abacus: 1, 2, 3, 4, 10, 11, 12, 13, 14, 20, ..

3D printer file information

  • 3D design format: STL Folder details Close
    • BaseFive_Bars_7.stl
    • BaseFive_BottomFrame.stl
    • BaseFive_TopFrame.stl
    • Bead_7.stl

    Learn more about the formats

  • Publication date: 2018-01-29 at 14:37




STEAM educator, learning from and working with K-12 STEAM teachers to explore new ideas of teaching and engagement. I firmly believe ART is at the core of STEM learning or all human learning! I owe my ideas and designs to the hundreds of K-12 children and teachers and university professors I have had the pleasure of working with, in multiple disciplines-- math, science,engineering language arts, social studies, early childhood education and more! All mistakes, of course, are mine! There is no warranty or liability whatsoever implied or explicit behind the designs or ideas. They are all posted for their potential educational values.

When working with children, please strictly observe all safety and health procedures! Please refer to the NSTA safety guides:


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