mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2018

4 December

Today's number is the number of 0s that 611! (611×610×...×2×1) ends in.

Show answer

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

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

Archive

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