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 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

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

Archive

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