Sunday Afternoon Maths XXXVI

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