Advent calendar 2015

Archive

Show me a random puzzle

Tags

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