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