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