Systems of equations, divisibility rules, and text problems.
Many Romanian universities maintain digital archives of their collections, which may include Gazeta Matematică. gazeta matematica pdf 2021
" (for professors and researchers) and "Seria B" (for students). Seria A (Archive): Systems of equations, divisibility rules, and text problems
The two series complement each other, covering the entire spectrum from elementary problem-solving to advanced research. Systems of equations