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