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