Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2019-11-01 Publisher: World Knowledge Publishing House The traditional manual of mathematical calculations. the list of knowledge points is lifeless. the content is boring and boring. and the child will be sleepy after a while. The book breaks the math boring stereotype. Based on calculations. it takes children to play games. walk mazes. and set the topics in the storyline. Passing the level successfully makes the children feel super accomplished and rela. Seller Inventory # NO018622