Advent calendar 2016

1 December

One of the digits of today's number was removed to leave a two digit number. This two digit number was added to today's number. The result was 619.


Show me a random puzzle
 Most recent collections 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2019