Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2uh/ Esercizi: http://www.khanacademy.org/exercise/rounding_whole_numbers Traduzione in Italiano del video Rounding Whole Numbers 1 http://www.youtube.com/watch?feature=player_embedded&v=_qzs1zozTBo http://www.khanacademy.org/math/arithmetic/multiplication-division/v/rounding-whole-numbers-1 Help us caption & translate this video! http://amara.org/v/B2uh/