Enhancements for this lesson:

For the addition and subtraction math, I removed the operations from under the matrices, and instead did the math inside newly designed tables which align better with better spacing.

IN addition, for the multiplication of AB, there is now a yellow color code for each step detailing which row/column combo is to be multiplied as well as a yellow code answer entry for each multiplication step.

The lesson link above and search engine were not modified.