ISBN: 9787567584525 - 2019三招过关每日五分钟速算 五年级数学第一学期 第二学期 上海版小学5年级上下口算心算练习训练小卷子 (1 results)

paperback. Condition: New. Language:Chinese.Paperback. Pub Date: 2019-03-01 Pages: 108 Publisher: East China Normal University Press of this series is to provide students a set of port operator. speed operator training small papers. by orderly and effective three measures (review for a minute. two quick calculation a half. a challenge and a half) type of training. the students rapidly improve computing power. 5 times a week. each 1 volume. 16 weeks per semester in order to calculate .…