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