use NumberForm
NumberForm[1.3, {3, 2}, NumberPadding -> "0"]
or for the whole list, map this as a function
NumberForm[#, {3, 2}, NumberPadding -> "0"] & /@ {1.5, 1.30, 13.5, 15.22}
yehuda
URL: ,
Subject (listing for 'How to display two digit number')