mscroggs.co.uk
mscroggs.co.uk

subscribe

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.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021