Since 5 is 1/5 of Abigail’s book, you multiply 5 x 5 and get 25. Abigail’s book has 25 pages. Since 6 is 1/6 of Teresa’s book, you multiply 6 x 6 and get 36. Teresa’s book has 36 pages. 36 - 25 = 11 Teresa’s book has 11 more pages than Abigail’s book.