Advent calendar 2016

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