Sometimes it is advantageous to express a value in round numbers. To round to a particular place, look at the digit immediately to the right of the one you want to round to, in this case, the ten thousandths place. If that digit is 4, 3, 2, 1 or 0, zero it and everything to the right of it out. If that digit is 5, 6, 7, 8 or 9, increase your target digit by one and zero everything to the right of it out. If your target digit is 9, it will become a zero and increase the digit to the left of it by one.
0.006
Four and one thousandth.
0.8
It is 28.065
It is 6.303
0.300
you can write one thousandth as a decimal as 0.010.001
one-thousandth as a decimal = 0.001
In decimal form, 1 thousandth is written 0.001
479, rounded to the nearest thousandth is 479 although, if you wish to indicate that it is accurate to the nearest thousandth, you could write it as 479.000
0.0001
0.006
.001
It is: 206/1000 = 0.206 as a decimal
49090.000
It is 0.0005
It is 0.0005