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