What if I told you, you can easily multiply numbers by just drawing lines and counting the intersections
Let me show you an example
12 X 23 = 276
12 that’s a 1 and a 2 so we first draw 1 red line diagonally on some paper then we draw 2 lines parallel to the 1st red line but close together ( see picture)
Next, we draw the number 23 as lines. It consists of a 2 and 3 so we will draw 2 lines then 3 in the same way as above but as blue lines and perpendicular to the red lines.
All that’s left to do is count the intersections and group them as we’ve done with the orange lines. The intersections on top of each other we just add up.
We count 2 intersections on the left, 7 in the middle and 6 at the end. This gives us the result of 276
If we happen to go above 10 we just carry the 1 over and add it to the number on the left side of our number.
If one of the numbers has a 0 we draw a line in a different colour or as a dashed line and we just do the same procedure but we don’t count the intersections with the 0-line.
The only limitation is how many lines you can draw before it becomes too hard to count the intersections.
