Croatian Competitions 1998

#CompetitionYearsProblemsYears
Croatian National Competitions
1Grade 91992–2026159
2Grade 101992–2026159
3Grade 111992–2026158
4Grade 121992–2026159
Croatian County-Level Competitions
5Grade 92015–202660
6Grade 102015–202660
7Grade 112015–202660
8Grade 122015–202660
Croatian School-Level Competitions
9Grade 92020–202649
10Grade 102020–202649
11Grade 112020–202649
12Grade 122020–202649
13Croatian Mathematical Olympiad2010–2025252
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ProblemSourceTags
Grade 9 1998 Problem 1Grade 9 1998AlgebraInequalities
Grade 9 1998 Problem 2Grade 9 1998AlgebraDiophantineNT
Grade 9 1998 Problem 3Grade 9 1998AlgebraOptimization
Grade 9 1998 Problem 4Grade 9 1998AreaGeometryPolygon
Grade 10 1998 Problem 1Grade 10 1998AlgebraComplexPolynomials
Grade 10 1998 Problem 2Grade 10 1998AlgebraInequalitiesRadicals
Grade 10 1998 Problem 3Grade 10 1998GeometryPerpendicularitySquareTriangle
Grade 10 1998 Problem 4Grade 10 1998DivisibilityNTCoprime
Grade 11 1998 Problem 1Grade 11 1998GeometryTriangleTrigonometry
Grade 11 1998 Problem 2Grade 11 1998Angles3D
Grade 11 1998 Problem 3Grade 11 1998EquilateralGeometryTriangle
Grade 11 1998 Problem 4Grade 11 1998DigitsDivisibilityNT
Grade 12 1998 Problem 1Grade 12 1998CoordTriangle
Grade 12 1998 Problem 2Grade 12 1998DivisibilityModNTPrimes
Grade 12 1998 Problem 3Grade 12 1998CombinatoricsConstructionFunctions
Grade 12 1998 Problem 4Grade 12 1998CombinatoricsGames