小学数学教材第四册简介人民教育出版社小学数学室刘意竹人民教育出版社小学数学室编著的这册教材，主要包括教科书和学具卡片，供六年制小学二年级第二学期使用。这册教材的内容有：混合运算和两步计算的应用题；万以内数的读法和写法；千克的初步认识；万以内的加法和减... Primary mathematics textbook fourth volume People's Education Press primary school mathematics room Liu Yi Zhu People's Education Publishing House primary school mathematics room compiled this book, including textbooks and school cards for the second year of the second year of primary school. The contents of this book are: mixed computing and two-step calculation of the application questions; thousands of reading and writing within the number of; kilograms of the initial understanding; million addition and subtraction within ...