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