Adhesive desk prompts are great for quick reference to help students learn and gain confidence with important concepts. This subtraction chart covers numbers 1-10. The rows are labeled 10 through 1, and the columns are labeled -1 through -10. The chart also has three blank subtraction tables along the right side for writing tricky problems to remember later. The small chart sticks easily to any smooth surface and can be removed without leaving a mess. It is color-coded and measures 3.5” x 4”.