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