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