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