Mathematics cards 50 pieces 100 sides. It is an upgraded version, while other merchants are the old version, we are the new version, with more content, adding multiplication and division formulas.

Product material. Copper card 300 grams double-sided pouch film

Product packing. One case contains 400 pieces.

Product usage, math flashcards. Formula 204, knowledge points 106.

Product Specification: 7.5*10.5 cm, plastic sealed. Includes one ring.