Stuck? Here's the overall structure of my solution; see if you can fill in the blanks!

Python

# Mini Calculator

# Display a welcome message

print("")

# Hard-coded values for the calculation

varaible1 =

variable2 = ''

variable3 =

# Perform the calculation based on the operator

variable3 = None

if variable2 == '':

result = variable1 [operation] variable3

elif variable2 == '':

result = variable1 [operation] variable2

elif variable2 = ''

result = variable1 [operation] variable3

elif variable2 == ''

if variable3 != [number]:

result = variable1 [operation] variable3

else:

print("")

elif variable2 == '':

if variable3 != [number]:

result = variable1 [operation] variable3

else:

print("")

else:

print("")

# Display the result if it's available

if result is not None:

print("")

# Display a closing message

print("")

Here is my solution. Remember there are other ways to approach this, so as long as you have something similar you're golden!

Python

# Mini Calculator

# Display a welcome message

print("Welcome to Mini Calculator!")

# Hard-coded values for the calculation

num1 = 10.0 operator = '+' num2 = 5.0

# Perform the calculation based on the operator

result = None

if operator == '+':

result = num1 + num2

elif operator == '-':

result = num1 - num2

elif operator == '*':

result = num1 * num2

elif operator == '/':

if num2 != 0:

result = num1 / num2

else:

print("Error: Division by zero is not allowed.")

elif operator == '%':

if num2 != 0:

result = num1 % num2

else:

print("Error: Modulo by zero is not allowed.")

else:

print("Error: Invalid operator. Please enter a valid operator.")

# Display the result if it's available

if result is not None:

print(f"Result: {num1} {operator} {num2} = {result}")

# Display a closing message

print("Thank you for using Mini Calculator!")

Hint + solution