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