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