There are 10 different books and 6 different movies in the ' crazy silly school ' series. If you read 14 of the movies and watched 19 of the books how many more books than movies have you read?
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There are 10 books and 6 movies in the series. 

You read 14 movies and watched 19 books. 

That means you read 4 more movies than you watched. 

Therefore, you read 4 more movies than books.