1000.0003
You would write it as 3000.059
50000.00003
0.0320
The way ou would write six thousand two hundred and three hundred eleven hundred thousandths is 6200.311
Assuming you mean (eleven thousand-five hundred three) thousandths, that the same as 11503 / 1000 = 11.503 If you actually meant eleven thousand-five hundred AND three thousandths, that would be 11500.003
2003.02003
0.3 is three tenths, or: thirty hundredths, three hundred thousandths (not to be confused with three hundred-thousandths, 0.00003), three thousand ten-thousandths, etc.
three thousandths
3000.00003
You write it as 11,500.003
Three thousand five ten-thousandths in standard notation = 0.3005
Three thousand fourteen and five thousandths written in standard form is 3014.005