Step-by-step explanation:
There are two ways of writing standard form. The first way is to just change the term into numerical:
one hundred twenty thousand, three hundred & fifty-two: 120,352 miles.
Another way that others may say can be the standard form is really the expanded form, in which you place each non-zero digit by itself:
100,000 + 20,000 + 300 + 50 + 2
~
