Advent calendar 2019

Archive

Show me a random puzzle

Tags

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