This value pack of flashcards includes 3 decks of 54 cards for teaching double or halving (simple multiplication and division). Covers numbers: 1-20, 1-100 and 1-1000. Includes visual examples to help children see mathematical relationships. Teaches fast, automatic recall. A perfect activity for independent or guided learning. Contains: 3 flashcard decks, 162 cards in total. Cards also work with the Flashbot, sold separately. Ages 5+