Advent calendar 2015

Archive

Show me a random puzzle

Tags

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