ordinal.rb

def make_it_ordinal(numbers)
    # Write your code here
    numbers.map{|number| ordinalize(number)}
   end
   
   
   def ordinal(number)
     if (11..13).include?(number % 100)
       "th"
     else
       case number % 10
         when 1; "st"
         when 2; "nd"
         when 3; "rd"
         else    "th"
       end
     end
   end
   
   def ordinalize(number)
     "#{number}#{ordinal(number)}"
   
   end