Advent calendar 2016

Archive

Show me a random puzzle

Tags

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