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