1. Mrs. Oltz had 435 books in
her classroom. There were
165 mystery books, 82 science
fiction books, and some
biographies. Which number
sentence shows one way to find
how many biographies she had?
(3-8)
A 435 – 165 – 82 = 1
B 435 - 165 + 82 = 1
C 435 + 165 - 82 = 1
D 435 + 165 + 82 = 1