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