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