How do you put 384400 kilometers number and word and expanded notation?

Answer 1

384,400 kilometers in word notation is: three hundred eighty-four thousand, four hundred kilometers.

Expanded notation of 384,400 is: (3 x 105) + (8 x 104) + (4 x 103) + (4 x 102) + (0 x 101) + (0 x 100) kilometers