For more complex problems, educational channels on platforms like YouTube often have "Homework Time" videos where teachers walk through lessons and answers for 4th-grade math modules. Key Topics in Rudnitskaya's 4th Grade Curriculum
Mastering place value up to the millions and understanding expanded form (e.g., gdz 4 klass matematika rudnitskaia bez skachki besplatno
Search for sites like GDZ.ru or Reshak.ru, which typically host Rudnitskaya's textbooks and workbooks (Rabochaya Tetrad) for online viewing. For more complex problems, educational channels on platforms