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