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