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