Notazione Scientifica (vecchio)

Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2wu/ Esercizi: http://www.khanacademy.org/exercises?exid=scientific_notation Traduzione in Italiano del video Scientific Notation (old) http://www.youtube.com/watch?v=trdbaV4TaAo http://www.khanacademy.org/video/scientific-notation--old?playlist=Pre-algebra