Subtraction 0-12 Skill Drill Flash Cards

Content-rich math cards do their job, teaching students new skills in a fun way. This educational aid develops basic subtraction skills 0-12. Self-checking, answers on card backs. Sturdy cards and storage box. Students will delight in mastering new skills. No-see-through cards with quick-sorting, rounded corners. Includes 91 cards, 3″ x 6″. For ages 6 and up.