Croatian National Competitions 2020

#CompetitionYearsProblemsYears
1Grade 91992–2026159
2Grade 101992–2026159
3Grade 111992–2026158
4Grade 121992–2026159

Documents

YearFilenameLanguageSource
2020drzavno_ssA_2020.pdfhrhttps://natjecanja.math.hr/domaca-natjecanja/domaca-natjecanja-arhiva/
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ProblemSourceTags
Grade 9 2020 Problem 1Grade 9 2020AbsAlgebraOptimization
Grade 9 2020 Problem 2Grade 9 2020AlgebraDiophantineNT
Grade 9 2020 Problem 3Grade 9 2020AnglesGeometryIncircleOrthocenterTriangle
Grade 9 2020 Problem 4Grade 9 2020AlgebraInequalitiesOptimization
Grade 9 2020 Problem 5Grade 9 2020BoardColoringCombinatoricsTiling
Grade 10 2020 Problem 1Grade 10 2020AlgebraDiophantineNT
Grade 10 2020 Problem 2Grade 10 2020AlgebraCompositeNTQuadratics
Grade 10 2020 Problem 3Grade 10 2020CircleCircumcircleGeometryTangentTriangle
Grade 10 2020 Problem 4Grade 10 2020AlgebraInequalitiesOptimization
Grade 10 2020 Problem 5Grade 10 2020BoardColoringCombinatoricsTiling
Grade 11 2020 Problem 1Grade 11 2020AlgebraDiophantineNTSystems
Grade 11 2020 Problem 2Grade 11 2020AlgebraInequalitiesRadicals
Grade 11 2020 Problem 3Grade 11 2020AnglesGeometryTriangle
Grade 11 2020 Problem 4Grade 11 2020ColoringCombinatoricsCoordParity
Grade 11 2020 Problem 5Grade 11 2020DiophantineExpNT
Grade 12 2020 Problem 1Grade 12 2020AlgebraComplexPolynomials
Grade 12 2020 Problem 2Grade 12 2020AlgebraFunctionalFunctions
Grade 12 2020 Problem 3Grade 12 2020CircleCircumcircleGeometryTangentTriangle
Grade 12 2020 Problem 4Grade 12 2020ColoringCombinatoricsCoordParity
Grade 12 2020 Problem 5Grade 12 2020DiophantineExpNT