This set of 2 kinds of cards for kids provides hours of learning fun, including Addition and subtraction . It can not only help your child learn basic math skills, but also be a game for all ages. Perfect gift for any child! Great for school supplies and back to school gifts. Feature - Color: As shown. - Material: Paper. - Size: About. 8.9x7.5x0.1cm. - Packed with 27 pieces addition cards and 27 pieces subtraction cards. - Made of paper material, won’t hurt your kids fingers. - These flash cards, ABC and numbers learning tools, are designed to help your child develop and grow. - Can help your child learn basic math skills. A game for all ages. - Perfect gift for any child! Great for school supplies and back to school gifts. - Warm Tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 81 x addition cards 81 x subtraction cards.