Integer addition, subtraction, multiplication, and division. 15 problems pages followed by 15 key pages. 30 pages in all. Each page contains 50 problems. Great for additional practice, homework, or timed practices. All problems use small numbers so that students will focus more on the concepts and less on computation. All problem pages are followed by a key. There are 3 integer addition pages, 3 subtraction pages, 3 addition/subtraction (mixed)pages, 3 multiplication pages, and 3 division pages. Download the preview to see all of the pages.