Advent calendar 2017

Archive

Show me a random puzzle

Tags

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