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Advent calendar 2016

15 December

A book has 386 pages. What do the page numbers on the two middle pages add up to?
Tags: numbers

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

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