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