Advent calendar 2018

Archive

Show me a random puzzle

Tags

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