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