Advent calendar 2015

Archive

Show me a random puzzle

Tags

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