my_lst = [0,100,200,300,400,500,600,700,800,900,1000]  # added 0 index number


# sort reversed: 9,6,4,3,1
for i in sorted([1,3,9,6,4], reverse=True):
    del my_lst[i]

print(my_lst)

[0, 200, 500, 700, 800, 1000]