Advent calendar 2017

Archive

Show me a random puzzle

Tags

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