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