Advent calendar 2017

Archive

Show me a random puzzle

Tags

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