Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/B2xt/ Esercizi: http://www.khanacademy.org/exercises?exid=multiplication_2 Traduzione in Italiano del video Multiplication 4: 2-digit times 1-digit number http://www.youtube.com/watch?v=OYYYc7ygd38&feature=player_embedded http://www.khanacademy.org/video/multiplication-4--2-digit-times-1-digit-number?playlist=Arithmetic Help us caption & translate this video! http://amara.org/v/B2xt/