01997cam a22003253u 4500 16527 UtSlPG 20260610133403.0 m cr n 260607r2005||||utu|||||o|||||||||||||| d UtSlPG ru iso639-1 QA Rachinskii, Sergei Aleksandrovich, 1836-1902 1001 задача для умственного счета 1001 tasks for mental calculation Salt Lake City, UT : Project Gutenberg, 2005 1 online resource : multiple file formats text txt rdacontent computer c rdamedia online resource cr rdacarrier Release date is 2005-08-14 - "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. (This is an automatically generated summary.) Original publication data not identified Word problems (Mathematics) Mathematics -- Problems, exercises, etc. https://www.gutenberg.org/ebooks/16527 57915 57915