While designed for the Istomina textbook, it is often used as a supplement for other 3rd-grade math programs to provide extra cognitive challenges. Key Problem Types in 3rd Grade
The physical and digital versions of the 3rd-grade workbook can be found on major platforms: logicheskie zadachi s otvetami 3 klass istomina tihonova
Three friends (Lena, Marina, Katya) shared three different fruits. Marina did not have the apple. Katya did not have the apple or the pear. While designed for the Istomina textbook, it is
Detailed teacher guides with solutions for every problem are available to help parents and educators explain the logic behind each task. Katya did not have the apple or the pear
Based on typical 3rd-grade logical curriculum standards, here are examples of the types of tasks found in Istomina and Tikhonova's materials:
The material bridges Mathematics and Informatics , preparing students for advanced data interpretation and logical reasoning.
Answer: Katya had the banana, Marina had the pear, and Lena had the apple.