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gerrymandering people maths indices advent triangles medians neighbours quadratics means irreducible numbers dodecagons cards speed triangle numbers routes clocks elections menace even numbers sums lines determinants hexagons range dice rugby cryptic clues albgebra 2d shapes averages palindromes mean odd numbers circles quadrilaterals volume numbers symmetry multiplication functions logic coordinates doubling chocolate probability pascal's triangle multiples decahedra money floors dominos consecutive numbers surds ellipses differentiation chess rectangles spheres complex numbers axes colouring area xor the only crossnumber perfect numbers parabolas ave tiling coins consecutive integers scales prime numbers lists geometric means addition bases probabilty square roots products median sequences arrows factorials perimeter cube numbers games calculus binary polygons combinatorics tournaments cubics number crosswords geometry algebra squares chalkdust crossnumber planes trigonometry digits division shape christmas cryptic crossnumbers books taxicab geometry sport fractions crossnumbers 3d shapes integration partitions square numbers star numbers polynomials graphs balancing multiplaction squares shapes square grids pentagons geometric mean remainders expansions digital products percentages matrices angles unit fractions prime factors wordplay integers sets regular shapes grids proportion sum to infinity folding tube maps dates powers time digital clocks tangents factors