# Mini Calculator # Function to add two numbers def add(num1, num2): return num1 + num2 # Function to subtract two numbers def subtract(num1, num2): return num1 - num2 # Function to multiply two numbers def multiply(num1, num2): return num1 * num2 # Function to divide two numbers def divide(num1, num2): return num1 / num2 # Main program print("Welcome to the Mini Calculator!") print("Select an operation:") print("1. Addition") print("2. Subtraction") print("3. Multiplication") print("4. Division") # Get user input for operation operation = int(input("Enter your choice (1-4): ")) # Get user input for numbers number1 = float(input("Enter the first number: ")) number2 = float(input("Enter the second number: ")) # Perform the selected operation if operation == 1: result = add(number1, number2) operator = "+" elif operation == 2: result = subtract(number1, number2...