Advent calendar 2021

Archive

Show me a random puzzle

Tags

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