Advent calendar 2023

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