Subtraction 0-12 All Facts Skill Drill Flash Cards
Learning facts is easier with complete subtraction tables for 0–12. Great for test prep and review. Self-checking; answers on card backs. All equations (0-0) through (12-12) and (13-1) through (24-12) are in the box! 169 cards. 3" x 6" sturdy no-see-through cards with quick-sorting, rounded corners. Reinforced box.