This program takes the first number you input and divides by 2, then takes the result and multiplies by 4. I decided to use classes and file writing because I just learned it yesterday. Please critique. Thank you.

# Write a program with two functions.
# The first function should take an integer as a parameter and return the result of the
# integer divided by 2.
# The second function should take an integer as a parameter and return the result of
# the integer multiplied by 4. Call the first function, save the result as a variable,
# and pass it as a parameter to the second function

myList = []

class Math:
    def __init__(self, x):
        self.number1 = x

#The try and excepts were created just in case I change the input to be mine instead of users's
#Divide the input

    def divide(self):
        try:
            self.division = self.number1 // 2
            return self.division
        except (TypeError, NameError):
            print("Unsupported format")

#Multiply the returned input

    def multiply(self):
        try:
            self.multiplication = self.division * 4
            myList.append(self.multiplication)
        except (AttributeError, NameError):
            print("First variable was not recognized")

while True:
    try:
        myNumber = Math(int(input("What number do you choose?"
                              "\nThis number will be divided by 2"
                              "\nThen it will be multiplied by 4\n")))
        myNumber.divide()
        myNumber.multiply()
        print(myList)
        tryAgain = input("Would you like to try again? "
                         "Press any key to continue. Press N to exit\n")

        if tryAgain == "N".lower():
            with open("data.txt", "w") as myData:
                myData.write("My data is: " + str(myList))
            break

    except(NameError,ValueError):
        print("Invalid Input")