Math computation practice. This is a free sample of booklets I am working on to 20. These booklets were created and tested with my first grade students to build math computation and number sense starting with the concrete and moving to the abstract. I have made several versions of these over the years and this is my favorite product. For best results: use in small group. As students pass the timed minute test they can move on to the next number. Print as a booklet leaving off the last page. When student turn in the completed booklet that lets you know they are ready for the test.