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