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