Number of Books Checked Out This Year
Teens Adults
Fiction 450 875
Self-Help 325 560
Historical 255 745
Biographies 180 620
Number of Books Checked Out Last Year
Teens Adults
Fiction 420 880
Self-Help 315 545
Historical 275 740
Biographies 175 635
The librarian at a local library is keeping track of how many of each type of book is checked out by teens and adults. Find the difference between the data for this year and last year.
Differences in Number of Books Checked Out
Teens Adults
Fiction _______ _______
Self-Help _______ _______
Historical _______ _______
Biographies _______ ________
Differences in Number of Books Checked Out
Teens Adults
Fiction 30 -5
Self-Help 10 15
Historical -20 5
Biographies 5 -15