: Early introduction to parts of a whole and basic percentages.

: Many digital platforms hosting these answers, such as GDZ.ru , allow students to check their work on specific pages and exercises from the three separate parts of the textbook. Overview of 4th Grade Math Concepts (Demidova)

: Analysis of geometric figures and their properties.

Based on common curriculum standards for this level, the GDZ covers:

: It provides detailed breakdowns for the textbook's more advanced 4th-grade units, such as: