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