Answer: There is no thousands in this number i.e. 580.
Explanation:
Since we have given that
8 tenths
5 thousandths
So, it will becomes,
8 tenths = 8×10
5 hundredths = 5× 100
8 tenths and 5 hundredths is written as

In 580, there is no number in thousandths place.
So, there will be no thousandths for that.