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

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