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