Generate 4 digit addition problems for home school/quiz

addition problems.py

#------------------------------------------------------------------
# PROGRAM NAME: addition problems.py
# DATE: 5/9/20
# CREATED BY: MATT BOGARD 
# PROJECT FILE: /Users/amandabogard/Google Drive/Python Scripts 
#----------------------------------------------------------------
# PURPOSE: generate basic addition problems       
# --------------------------------------------------------------- 

# references: modified from: https://codereview.stackexchange.com/questions/106464/generating-arithmetic-quiz-questions

# this program generates and grades random 4 digit addition problems
# if a student enters the wrong answer, it was modified from the original source to provide the correct answer
# before moving to the next question

name = input("What is your name? ")
print("Hello, "+name+". You will be completing a quiz that will ask you 5 questions adding numbers up to 4 digits. Try your best at each question and good luck!")

import random
from operator import add

count = 0
score = 0
while count <= 4:
    op = add
    x = random.randint(1000,9999)
    y = random.randint(1000,9999)

    if op == add:
        print("What is", x, "+",y, "? ")
        question_add = int(input())
        answer_add = op(x,y)
        if question_add == answer_add:
            print("Well done, this is correct!")
            score = score + 1
            count = count + 1
        else:
            print("Sorry, but this is incorrect.")
            print("the correct answer is:")
            print(x+y)
            count = count + 1


    if count == 5:
        print("Well done "+name+"! You have completed the quiz. You correctly answered "+str(score)+" questions.")