Mead Flashcards, Subtraction, Grades K-3, 3.62 x 5.25 Inches, 55 Cards (63122) Repeated use of flashcards will enhance mastery of math facts Includes multisensory activities and direction card Includes reward stickers 55 Cards Card size is 3.6 x 5.25 inches, total packaging size is 0.9 x 3.8 x 6.1 inches