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