I came across something that is completely counter-intuitive, and I'm wondering if I'm correct or not. If a square has a side that is .8m someone would do .8 time .8 which is .64. How can an area be smaller than a side I thought and so I looked it up and found only one site that said something that made sense. They said that if it was smaller than 1 then you should scale down the measurement so that it would be a whole number. So I tried 80cm by 80cm which came out to 6400cm which is 64m. When you multiply .8 meters by .8 meters it comes out to .64 meters. Am I correct, and if so, why isn't this taught in schools?