This information is from the Florida Department of Education Web Site:
What kinds of answers must students give on the FCAT?
There are multiple-choice questions on all grade levels of FCAT but at some grade levels students also must provide written answers and complete number grids. Students at Grades 4, 5, 8, 10, and 11 must provide written answers that show how well they understand the skill tested. Student answers to these questions also provide the school and district information about their instructional programs. Questions that require written answers are more costly and take longer to score. That’s why only one test in each grade range (elementary, middle, and high school) and each subject area (reading, writing, mathematics, and science) includes these types of test questions. For some questions in mathematics and science, students in Grades 5 through 11 are asked to find numerical answers and then bubble the answer into a number grid. More information and examples of all types of FCAT questions, the amount of time allocated to each type, and the guidelines for scoring are found on the Department of Education website. (See the publications listed in the “More Information About FCAT” section.)
http://www.fldoe.org/faq/default.asp?Dept=202&ID=667#Q667 Here's a page with sample tests and answers.
http://firn.edu/doe/sas/fcatrelease.html Here are sample questions from 2005-06:
http://firn.edu/doe/sas/fcat/fcatsmpl.htm