Videos
    Expand filters
    • Search by Image
    00:00
    00:00
    00:00

    chinese abacus is a calculating tool used primarily in parts of Asia for performing arithmetic processes. The abacus was in use centuries before the adoption of the written modern numeral system. Free Video

    Click to view uploads for Narin Sapaisarn
    Narin Sapaisarn 4,265 Resources
    Checkmark icon
    Free License What's This?
    Contributor icon
    Attribution Required How?