How do you write three hundred sixty-five thousandths in decimal form?

To write three hundred sixty-five thousandths in decimal form, you would write it as 0.365. This is because the decimal form of a number is determined by the place value of each digit, with the first digit after the decimal point representing tenths, the second representing hundredths, and the third representing thousandths. Therefore, 365 thousandths would be written as 0.365.