mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2017

10 December

How many zeros does 1000! (ie 1000 × 999 × 998 × ... × 1) end with?

Show answer

Archive

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

Tags

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

Archive

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