The Kozlova/Rubin materials are known for "non-standard" problems that require logical thinking rather than just calculation. Practice Resources
Basic geometric tasks, such as finding the of shapes. Logical & "Non-standard" Tasks: zadaniia po matematike 2 klass avtor kozlova rubin skachat
If you are helping a student prepare for these tests, focus on these core Russian curriculum topics for Grade 2: Reading and writing numbers up to 100. Understanding place value (tens and ones). Arithmetic Operations: Understanding place value (tens and ones)
You can often find PDF previews or full versions of these textbooks and workbooks on educational platforms like Infourok or through specific educational groups on VKontakte . If you need the physical workbook for the
Mastering facts within 20 and column addition/subtraction within 100 (both with and without regrouping).
If you need the physical workbook for the "School 2100" system, retailers like Labirint carry the Kozlova and Rubin "Control Works". 2nd Grade Math Study Guide
Introducing the concept as "equal groups" and learning the basic multiplication tables. Problem Solving: