The 4th-grade curriculum by these authors is known for its high level of difficulty, focusing on:

Many tasks are closer to "Olympiad-style" problems, requiring students to look for non-standard solutions.

Reviews from platforms like Labirint and LiveLib highlight contrasting experiences:

Gdz Po Matematike 4 Klass T.e.demidova S.a.kozlova A.p.tonkikh Spisat ✧

The 4th-grade curriculum by these authors is known for its high level of difficulty, focusing on:

Many tasks are closer to "Olympiad-style" problems, requiring students to look for non-standard solutions. The 4th-grade curriculum by these authors is known

Reviews from platforms like Labirint and LiveLib highlight contrasting experiences: The 4th-grade curriculum by these authors is known