Isbn: 9787549258147 - 全套2册 小学生数学口算题卡 一年级 上下册口算心算速算天天练同步训练本巧算能力大通关快速计算书幼儿童20以内加减法达人算数本 (1 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Paperback.Pub Date:2018-06-01 Publisher: Changjiang Publishing House Mathematics Oral Calculation Question Card is compiled based on the new curriculum standards of the Ministry of Education. It is a series of books jointly compiled by many front-line teachers and researchers with their wisdom and experience.?It opens up students' mathematical thinking in an optimized combination. allows students to quickly go to the knowledge field of mathematics. cultivates their interest i.…