2009-08-05, 05:18 PM
DarkPwnage Wrote:I multiplied it like it was on paper in the air. I've been trying to train myself to be able to do double digit by double digit multiplication like that recently xP
The way I learned to do mental math was simply doing it on every single math question I ever got. Teachers would get annoyed frequently at me not "showing my work." I refused to spend half a minute writing down what I did when it only took 5-10seconds mentally. Writing slows me down, because my hands can't keep up with my brain.