Answer:
The answer would be about 220 cards on the fourth year.
Step-by-step explanation:
We know the first year he collect 305,178,298.We add those and then subtarct from 1000.Since they are asking about you need to round each one.305->300 178->180 298->300 Now that you got your answer from those (780) subtract that from 1000.You should get 220.