Nummolt modulo applet
Interactive applet to visualize numbers:
Write a simple operation (addition, subtraction or multiplication) and solve in a interactive way.
Nubers are visualized like polygonal shapes (in Z), modular shapes (in Z), or base 10 blocks (N).
To visualize numbers in a particle analogy. This work is the internet version of the old nummolt program (15 years after)
Video help available. (link in the applet)