《1001 задача для умственного счета》作者：Sergei Rachinskii【EPUB】

杨超越

书籍简介：
"1001 задача для умственного счета" by Sergei Aleksandrovich Rachinskii is a mathematical workbook written in the late 19th century. This collection contains a vast array of arithmetic problems designed for educational purposes, particularly for use in classrooms. The problems are presented in a straightforward language, often contextualized in practical scenarios, enabling learners to enhance their mental calculation skills. The opening of this workbook introduces the format and structure of the challenges included. It details that the tasks are tailored for students and can be applied in arithmetic lessons. The first few examples presented illustrate various calculations involving reading, purchasing land, and budgeting, emphasizing real-world situations that require mental arithmetic. Each problem is followed by a solution, which helps learners verify their understanding and mastery of the concepts presented.

谢尔盖·亚历山德罗维奇·拉钦斯基的《1001сачадляумственногочета》是19世纪末写的一本数学工作簿。这个集合包含大量为教育目的设计的算术问题，特别是在课堂上使用。这些问题以直截了当的语言呈现，通常在实际场景中进行情境化，使学习者能够提高他们的心理计算技能。本工作簿的开头介绍了所包含挑战的格式和结构。它详细说明了这些任务是为学生量身定制的，可以应用于算术课。前几个例子说明了涉及阅读、购买土地和预算的各种计算，强调了需要心算的现实世界情况。每个问题后面都有一个解决方案，帮助学习者验证他们对所呈现概念的理解和掌握。

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