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Advent calendar 2020

16 December

Solve the crossnumber to find today's number. No number starts with 0.

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

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