Advent calendar 2015

Archive

Show me a random puzzle

Tags

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