The baby's mathematical oral calculation exercises have the following characteristics: [Competition] At the same time of the game, carry out mathematics enlightenment to the baby to exercise the baby's quick calculation and oral calculation ability; [Set difficulty] Add, subtract, multiply and divide, from 10 to 100, parents can flexibly set the difficulty according to the child's age and learning situation, and gradually improve the baby's quick calculation ability; [Exquisite picture] The picture design is exquisite and the animation design is smart, which effectively enhances the interest of learning; Mathematics enlightenment, young connection, baby likes, parents must, happy learning, continuous improvement!