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