Advent calendar 2017

23 December

In the song The Twelve Days of Christmas, how many presents have been given after 8 days?


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


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