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