Takes input in the form of "what is 5 plus 9" "what is 9 multiplied by 13" etc. words with * - / + for single operations or multiple of the same operation.

wordy_calc.rb

def wordy_calc(question)
  i = 0
  operation_plus = question.match(/(plus)/).to_s
  operation_minus = question.match(/(minus)/).to_s
  operation_times = question.match(/(multiplied)/).to_s
  operation_div = question.match(/(divided)/).to_s
  question_arr = question.split(" ")
  question_arr.each do |word|
    word.gsub!(/\D/, '') 
  end
  question_arr.delete("")
  question_arr.map! do |num|
    num = num.to_f
  end 
  operation_plus == "plus" ? answer = question_arr.inject{|sum,x| sum + x } : i += 1
  operation_minus == "minus" ? answer = question_arr.inject{|diff,x| diff - x } : i += 1
  operation_times == "multiplied" ? answer = question_arr.inject{|prod,x| prod * x } : i += 1
  operation_div == "divided" ? answer = question_arr.inject{|div,x| div / x } : i += 1
  answer
end