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


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