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Advent calendar 2016

17 December

The number of degrees in one internal angle of a regular polygon with 360 sides.

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Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

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

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