Respuesta :

Answer:

Step-by-step explanation:

300(3) + 40(3)+ 9(3)

600+120+27

747

700+40+7

not quite sure what answer you are looking for here

Answer: From how i understand this question:

349 x 3 = 1,047. 1,047 in expanded form should be 1,000 + 0 + 40 + 7.