This document includes 5 checklists to a page. The checklist includes the necessary steps to solving an addition or subtraction problem with a space to circle yes or no based on student work. The checklist is a great formative or summative assessment to monitor specific areas of need for students. This can also be used for peer-assessing. I like to attach one to a worksheet or a quiz and put the number of the problem the student got wrong next to the criteria I circled "no" for so that he/she can go back and know exactly what mistake he/she made.