Advent calendar 2015

Archive

Show me a random puzzle

Tags

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