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