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