mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

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

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024