If you are looking for the textbook itself to match with solutions:
: Websites like YaGDZ offer ready-made answers for the 4th-grade workbook by Geidman. skachat reshebnik matematiki 4 klass 1 chast geidman
While a single official "reshebnik" PDF for download is rare due to copyright, many platforms provide online answers and solutions for the exercises in this curriculum: If you are looking for the textbook itself
: An official digitized version of the 2022 textbook (Part 1) is cataloged in the National Electronic Library (NEB) for viewing. Geidman, I
Finding a downloadable "reshebnik" (solution book or GDZ) for the by B.P. Geidman, I.E. Misharina, and E.A. Zvereva involves looking for online answer keys and digital versions of the educational materials. Online Resources for Solutions (GDZ)
The 4th-grade curriculum by Geidman is known for its rigor and includes topics such as: Multi-digit multiplication and division. Finding speed, time, and area. Solving complex multi-step equations. Measurement conversions (e.g., meters to decimeters).
: General educational sites like GDZ.ru list solutions for various 4th-grade math programs, though specific coverage for Geidman may vary by year.