Advent calendar 2018

Archive

Show me a random puzzle

Tags

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