An awesome way to do your multiplications. It works very well! Try it!.
http://fliiby.com/file/296887/qumg9xh9vs.html
http://fliiby.com/file/296887/qumg9xh9vs.html
You count the intersections. It's based on the principle of rectangles. If I have a rectangle with a width of 2 and a length of 3 then I have 6 square units inside my rectangle. If I have a larger multiplication to do I can just make a whole bunch of rectangles (a set for each power of ten) and add their area's together.I don't get how you know what lines to count.
When I saw the title I thought you were talking about how the Chinese have such a high birth rate.

