Advent calendar 2018

Archive

Show me a random puzzle

Tags

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