a few suggestions

gistfile1.py

#!/usr/bin/python
 
from random import randint, choice
 
 
def return_list(num_to_try,numbers_dictionary):
 
    first = randint(1,6)
    list_fig = [int(numbers_dictionary[first])]
    called = [first]
    x = 1
    while x < num_to_try:
        y = randint(1,6)
        if y not in called:
            list_fig.append(int(numbers_dictionary[y]))
            called.append(y)
        x += 1
    return list_fig
 
 
def operator():
    #x = randint(1,4)
    #if x == 1:
    # return "addition"
    #if x == 2:
    # return "subtraction"
    #if x == 3:
    # return "multiplication"
    #if x == 4:
    return choice(("addition", "subtraction", "division", "multiplication"))
 
 
def takes_two(a, b, operation):
    operations = {"addition": float(a + b),
                         "subtraction": float(a - b),
                         "multiplication": float(a * b),
                         "division": float(a / b)}
    return operations[operation]
     
def check_target(list):
    x = len(list)
    count = 1
    total = list[0]
    final_list = [float(total)]
    while count < x:
        op = operator()
        second = list[count]
        total = takes_two(total,second,op)
        count += 1
    #final_list.append(op)
    #final_list.append(second)
    #final_list.append(" = ")
    #final_list.append(float(total))
        final_list.extend([op, second, " = ", float(total)])
    return (total, final_list)
 
 
 
 
def main():
 
    print "********************************"
    print "*** Welcome to the Countdown ***"
    print "*** Number Puzzle Solver ***"
    print "********************************"
     
    numbers_dictionary = {} # Empty
     
    prompts = ["first", "second",
               "third", "fourth",
               "fifth", "sixth"]
    for i, prompt in enumerate(prompts, start=1):
        full_prompt = "Enter {} number:".format(prompt)
        numbers_dictionary[i] = raw_input(full_prompt)
    target = int(raw_input("Enter the Target Number"))
    total = 0
     
    while target != total:
        num_to_try = randint(1,6)
        (total , final_list) = check_target(return_list(num_to_try,numbers_dictionary))
             
    print total
    print final_list
 
if __name__ == '__main__':
    main()