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