I used this when I was in kindergarten. I haven't written in it to solve the problems, but there were some places where I had lightly made check marks, so I will erase them with an eraser before shipping. (I apologize if I miss anything) Please refrain from purchasing if you are sensitive to used items. I studied at home since kindergarten, so I have no aversion to numbers at all, and I am very quick at calculations. In order to develop number skills, it is necessary not just to count 1, 2, 3, ... but to instantly grasp numbers and decompose them into groups of 2-5 and then combine them. This leads to training number logic skills, which are the basic abilities that span all of mathematics. First, we will start with this "Numbers and Calculations ①" to practice grasping numbers. #EntranceExamForElementarySchool #EarlyChildhoodEducation #EducationalToys #Arithmetic #EntranceExamForJuniorHighSchool