10 December

This number is divisible by 2. One more than this number is divisible by 3. Two more than this number is divisible by 5. Three more than this number is divisible by 7. Four more than this number is divisible by 11. Five more than this number is divisible by 13.


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


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