def multiply(x, y): return x * y
elif choice == '2': print(num1, "-", num2, "=", subtract(num1, num2)) use a cabeca python 2 edicao download pdf
def add(x, y): return x + y
def divide(x, y): if y == 0: return "Error! Division by zero is not allowed." else: return x / y def multiply(x, y): return x * y elif
def calculator(): print("Welcome to the Simple Calculator") print("1. Addition") print("2. Subtraction") print("3. Multiplication") print("4. Division") num2)) def add(x