Sunday Afternoon Maths VLII

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