my %ITEMS = ( 29.95 => 'item 1', 38.55 => 'item 2', "45.20" => 'item 3', # String 45.2 => 'item 3', # Number 58.29 => 'item 4', ); print $_, "\n" foreach (keys %ITEMS); __OUTPUT__ 58.29 38.55 45.2 45.20 29.95