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