Thousandths

One part in a thousand equal parts

  1000 
-999
     1

_1_
               1000    = 0.001


http://www.aaamath.com/g5_44ax1.htm

http://www.aaamath.com/g51b_px1.htm

http://www.helpingwithmath.com/by_subject/numbers/place_value/pla_place_value08.htm


http://www.mcwdn.org/Decimals/Thousandths.html