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