Our hands-on cards help students visualize math problems and gain a deep understanding of multiplication! The cards represent the multiplication of numbers 1-10 in various ways: facts, their products and corresponding visual models. Kids match up 4 cards for each fact, developing numerical flexibility as they go! Set includes 10 decks (400 cards total) and a guide. Cards measure 2 1⁄2" x 3 1⁄2".