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