#Store number variables for the two numbers  num1 = input('Enter first number: ') num2 = input('Enter second number: ')  #the sum of the two numbers variable sum = float(num1) + float(num2) sum2 = float(num1) - float(num2) sum3 = float(num1) * float(num2) sum4 = float(num1) / float(num2)  #what operator to use choice = input('Enter an operator, + = addition, - = subtraction, * = multiplication and / = division: ') #different sums based on the operators if choice == '+':   print('The sum of {0} and {1} is {2}'.format(num1, num2, sum))    if choice == '-':     print('The sum of {0} and {1} is {2}'.format(num1, num2, sum2))  if choice == '*':     print('The sum of {0} and {1} is {2}'.format(num1, num2, sum3))  if choice == '/':     print('The sum of {0} and {1} is {2}'.format(num1, num2, sum4))

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