Learning modules to help (grand)kids with math... and science... on school...
Online-Version: (https://pitwd.github.io/index.html)
Be careful!
Descriptions and handling-keys have (like my grand kids) a German focus!
Download the HTML-file(s) and store them local. Open them then with the browsers file-menu. No external dependencies. All browsers with activated JavaScript should run the modules.
Or use the online versions via their links.
I never ever touched html or java-script before in my life... this is the result of my very first 8h on it - and I already would know how to do a lot of things better...
- Strong but simple terminal-style like visualization and handling of adding and subtracting two numbers from 0 to 9999. The result range is between -9999 and 19998. To set values you need to use the digits of 1/10/100 very intentional.
Online-Version: (https://pitwd.github.io/PlusMinus.html)