I'm trying to make a quiz in python but I keep getting invalid syntax errors.

#This is for addition questions.if (question=add)  <---- That is where i get the error
for i in range(0,10):first_number_add=random.randint(1,50)second_number_add=random.randint(1,50)answer=int(input(str(first_number_add) + '+' + str(second_number_add) + '='))sum=first_number_add+second_number_addif (answer==sum):print ('Correct')stats['correct'] += 1else:print ('Incorrect.')stats['incorrect'] += 1

for comparasion you need to use ==:

if question==add:   #you dont need bracket here# do your stuff 

sum is built-in sum function dont use it for variable name