Mathematical operation flashcard set: Our card set contains 224 double-sided math flashcards, divided into 4 separate packs by addition, subtraction, multiplication and division.Materializing math concepts in this creative way allows kids to take part in fun educational activities to build confidence in learning math and develop fundamental calculating skills.Good helper for learning math:The multiplication math flash card designed in the order of multiplication table will help kids memorize and understand knowledge points, having a positive effect on math learning.On the back of each math fact is the answer, which is convenient for kids to check their own learning outcomes.Parents & teachers can interact with children to learn by using this learning tool, exercising kids' oral calculation ability and improve thinking sensitivity.Ideal gift to choose: Gifts of knowledge are meaningful and welcome. This math flash card set is a card game that helps primary school students learn, review and practice addition, subtraction, multiplication and division,making it an ideal gift for children. It is fun, safe and practical as classroom and homeschool supplies.Easy to read and store:The cards of addition, subtraction, multiplication and division cards correspond to different colors, easy to use and store. All educational cards are designed with rounded edges for safe holding by children. Each card measures 3.2 X 4.6 inches in bold fonts and vibrant color, which is attractive enough to get kids involved in math games.Reliable quality:Cardstock covered with high quality erasable film, making lasting and easy erasable marks left without worrying about stains.Printed with high quality non-toxic high gloss ink, scratch-proof, durable and reusable.If you have any questions about your purchase, please feel free to contact us and we will give you a satisfactory answer within 24 hours.