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