5 December

I make a book by taking 111 sheets of paper, folding them all in half, then stapling them all together through the fold. I then number the pages from 1 to 444.
Today's number is the sum of the two page numbers on the centre spread of my book.
Tags: numbers, books


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


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