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