Sue borrowed 15 books and 6 movies. She returned 8 books. She then returned a third of the movies to the library and checked out 9 more books. How many movies and books does Sue now have?
Sue has 15-8 = <T>subtract(15, 8)=7 books left after returning at the library.
Sue returned 6/3 = <T>divide(6, 3)=2.0 movies to the library.
Sue had 6-2 = <T>subtract(6, 2)=4 movies left.
Sue had 7+9 = <T>add(7, 9)=16 books after checking out at the library.
Sue has 16+4 = <T>add(16, 4)=20 movies and books combined.
