Croatian County-Level Competitions 2021

#CompetitionYearsProblemsYears
1Grade 92015–202660
2Grade 102015–202660
3Grade 112015–202660
4Grade 122015–202660

Documents

YearFilenameLanguageSource
2021zupanijsko_ssA_2021.pdfhrhttps://natjecanja.math.hr/domaca-natjecanja/domaca-natjecanja-arhiva/
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ProblemSourceTags
Grade 9 2021 Problem 1Grade 9 2021AlgebraDiophantineEq
Grade 9 2021 Problem 2Grade 9 2021AlgebraOptimizationSystems
Grade 9 2021 Problem 3Grade 9 2021AlgebraSystems
Grade 9 2021 Problem 4Grade 9 2021AnglesGeometryTriangle
Grade 9 2021 Problem 5Grade 9 2021CombinatoricsCubeOptimization
Grade 10 2021 Problem 1Grade 10 2021AlgebraSystems
Grade 10 2021 Problem 2Grade 10 2021NTPrimes
Grade 10 2021 Problem 3Grade 10 2021AlgebraFunctionsOptimizationQuadratics
Grade 10 2021 Problem 4Grade 10 2021CircleCircumcircleGeometryIncircleTriangle
Grade 10 2021 Problem 5Grade 10 2021ColoringCombinatoricsPolygon
Grade 11 2021 Problem 1Grade 11 2021GeometryOrthocenterTriangleTrigonometry
Grade 11 2021 Problem 2Grade 11 2021AlgebraEqExp
Grade 11 2021 Problem 3Grade 11 2021CircleCircumcircleGeometryIncircleTriangle
Grade 11 2021 Problem 4Grade 11 2021NTPowers
Grade 11 2021 Problem 5Grade 11 2021CombinatoricsGraphsParity
Grade 12 2021 Problem 1Grade 12 2021FactorialNTPowersPrimes
Grade 12 2021 Problem 2Grade 12 2021AlgebraComplexSystems
Grade 12 2021 Problem 3Grade 12 2021AlgebraInequalities
Grade 12 2021 Problem 4Grade 12 2021CombinatoricsCountingPermutations
Grade 12 2021 Problem 5Grade 12 2021AnglesCircleCircumcircleGeometryTriangle