While often for slightly older kids, the elementary versions (Grade 3-4) introduce "circle-style" problems: parity, logic puzzles, and "backwards" reasoning.
Knight/Knave problems, weighing puzzles, and "magic squares." podgotovka k olimpiade po matematike 3-4 klass
If you are looking for specific "Podgotovka k olimpiade" (Olympiad Preparation) materials, these are the highly-rated standards for the Russian mathematical tradition: While often for slightly older kids, the elementary
This is the most popular international math competition for this age group. Reviewing past papers is the best way to understand the "tricks" used in competitive math. A popular workbook that bridges the gap between
A popular workbook that bridges the gap between standard curriculum and competition-level logic. 🔍 Key Learning Areas for 3rd & 4th Grade A good preparation book for this age should cover:
Often considered the "gold standard" for early competitive math. Her series focuses on "non-standard" problems that require logical leaps rather than just computation.
Basic divisibility rules, patterns, and sequences.