Advent calendar 2016

17 December

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


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Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

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


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