: A comprehensive "super-training" guide covering all 4th-grade curriculum topics with a wide variety of exercise types.

The following books are widely used for daily practice and preparation for the All-Russian Verification Work (VPR). All listed products can be found at retailers like Knizhka US :

: Basic introduction to fractions and understanding place values for large numbers. Recommended Problem Books (Zadachniki)

: Specifically designed to reinforce calculation skills for large numbers as required by Federal State Educational Standards (FGOS).