The Culegere de matematică series by Ion Petrică is a highly regarded Romanian educational resource, known for its rigorous, progressive exercises ranging from primary to gymnasium levels. The collection, often available in PDF format on platforms like Scribd, is praised for aligning with school curricula and including practical, diverse problems. Digital versions of the math collection can be found on Scribd. Culegere Matematica Petrica 149.pdf - Facebook
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Google Drive Links: Many student communities share direct links for quick access. The Culegere de matematică series by Ion Petrică