MathterRiddler @MathterRiddler Puzzle from the Mathter website: mathter.islands.co.il/en/questions/1… #Puzzle #ConstructinganExampleCounterexample #Sequences #Fractions #AveragesMeans #MinimumandMaximumProblemsOptimizationProblems 5:00 PM · Jan 1, 2026 · 1 Views 1