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