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