Advent calendar 2016

9 December

You start at A and are allowed to move either to the right or upwards.
How many different routes are there to get from A to B?


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


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