Advent calendar 2015

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


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