Sunday Afternoon Maths XXXVII

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