You could mean 200.0015 if you are talking about the whole number two hundred. You could also mean 0.215 if you are talking about an amount of thousandths.
15.375 = fifteen and three hundred seventy-five thousandths.
Five thousand six hundred fifteen ten-thousandths in standard form is 0.5615
Five thousand two hundred thousandths in decimal form is 5.2
Three and fifteen hundred-thousandths.
14.015
.615
350.015
Three hundred and fifteen thousandths (0.315) in standard form = 3.15 × 10-1
Sixteen hundred-thousandths in decimal form is 0.00016
7,000 hundred-thousandths in decimal form is: 0.07 or 0.07000
Sixteen hundred-thousandths in decimal form is 0.00016
Sixty-seven hundred-thousandths in decimal form is 0.00067
15.375 = fifteen and three hundred seventy-five thousandths.
Two hundred fifteen thousandths (0.215) in standard form = 2.15 × 10-1
Two and six hundred thousandths in decimal form would be written as 2.00006
Sixty-eight hundred-thousandths written in decimal form is 0.00068
Well, isn't that a happy little question! To write 0.315 in decimal word form, you simply say "three hundred fifteen thousandths." It's just like painting a beautiful landscape - take your time, be gentle with your brushstrokes, and enjoy the process.