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