This is a follow-up to John Golden's post [url=https://www.geogebra.org/m/3349143]Vedic Multiplication trick[/url]. The goal is to find the product of the two digit numbers [math]\left(100-a\right)[/math] and [math]\left(100-b\right)[/math].[list][*]Use the sliders [math]a[/math] and [math]b[/math] to construct the rectangle with area [math](100-a)(100-b)[/math].[br][/*][*]Follow the steps to find out how this area compares to the area of the orange rectangle: [math](100-a-b)*100[/math].[br][/*][/list]