Advent calendar 2018

9 December

Today's number is the number of numbers between 10 and 1,000 that contain no 0, 1, 2 or 3.

Show answer


Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020