Fifty one million, three hundred forty two thousand, one hundred dollars.
350 usa dollars
One thousand twenty dollars
One hundred sixty thousand dollars.
In the US, when it is obviously refering to US currency, it is written simply $1000. When there is any possibility that it is in another countries dollars, it is usually $1000 US and I have seen financial documents written elsewhere in which it is written as 1000 USD (apparently their keyboard does not have a "$")
Two million two hundred thousand dollars.
One hundred thousand US dollars.
One thousand one hundred then thousandths of a US dollar.
About 85.36 (85 dollars and 36 cents) in the us Today is one word, not two words
Twenty million three hundred thousand dollars.
It is three and a half million US dollars.
Four hundred eighty-five dollars.
One lakh dollars. Although you may also wish to specify the country: US dollars or Hong Kong dollars or whatever.