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